20728407720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1109}}^1$

素因数の和:1324

約数の個数: 256

約数和(自身を含む): 66461472000

約数和(自身を除く): 45733064280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 41, 58, 60, 82, 87, 116, 120, 123, 131, 145, 164, 174, 205, 232, 246, 262, 290, 328, 348, 393, 410, 435, 492, 524, 580, 615, 655, 696, 786, 820, 870, 984, 1048, 1109, 1160, 1189, 1230, 1310, 1572, 1640, 1740, 1965, 2218, 2378, 2460, 2620, 3144, 3327, 3480, 3567, 3799, 3930, 4436, 4756, 4920, 5240, 5371, 5545, 5945, 6654, 7134, 7598, 7860, 8872, 9512, 10742, 11090, 11397, 11890, 13308, 14268, 15196, 15720, 16113, 16635, 17835, 18995, 21484, 22180, 22794, 23780, 26616, 26855, 28536, 30392, 32161, 32226, 33270, 35670, 37990, 42968, 44360, 45469, 45588, 47560, 53710, 56985, 64322, 64452, 66540, 71340, 75980, 80565, 90938, 91176, 96483, 107420, 113970, 128644, 128904, 133080, 136407, 142680, 145279, 151960, 155759, 160805, 161130, 181876, 192966, 214840, 227345, 227940, 257288, 272814, 290558, 311518, 321610, 322260, 363752, 385932, 435837, 454690, 455880, 467277, 482415, 545628, 581116, 623036, 643220, 644520, 682035, 726395, 771864, 778795, 871674, 909380, 934554, 964830, 1091256, 1162232, 1246072, 1286440, 1318601, 1364070, 1452790, 1557590, 1743348, 1818760, 1869108, 1929660, 2179185, 2336385, 2637202, 2728140, 2905580, 3115180, 3486696, 3738216, 3859320, 3955803, 4213091, 4358370, 4672770, 5274404, 5456280, 5811160, 5956439, 6230360, 6593005, 7911606, 8426182, 8716740, 9345540, 10548808, 11912878, 12639273, 13186010, 15823212, 16852364, 17433480, 17869317, 18691080, 19779015, 21065455, 23825756, 25278546, 26372020, 29782195, 31646424, 33704728, 35738634, 39558030, 42130910, 47651512, 50557092, 52744040, 59564390, 63196365, 71477268, 79116060, 84261820, 89346585, 101114184, 119128780, 126392730, 142954536, 158232120, 168523640, 172736731, 178693170, 238257560, 252785460, 345473462, 357386340, 505570920, 518210193, 690946924, 714772680, 863683655, 1036420386, 1381893848, 1727367310, 2072840772, 2591050965, 3454734620, 4145681544, 5182101930, 6909469240, 10364203860, 20728407720]

約数ペア:

[(1, 20728407720), (2, 10364203860), (3, 6909469240), (4, 5182101930), (5, 4145681544), (6, 3454734620), (8, 2591050965), (10, 2072840772), (12, 1727367310), (15, 1381893848), (20, 1036420386), (24, 863683655), (29, 714772680), (30, 690946924), (40, 518210193), (41, 505570920), (58, 357386340), (60, 345473462), (82, 252785460), (87, 238257560), (116, 178693170), (120, 172736731), (123, 168523640), (131, 158232120), (145, 142954536), (164, 126392730), (174, 119128780), (205, 101114184), (232, 89346585), (246, 84261820), (262, 79116060), (290, 71477268), (328, 63196365), (348, 59564390), (393, 52744040), (410, 50557092), (435, 47651512), (492, 42130910), (524, 39558030), (580, 35738634), (615, 33704728), (655, 31646424), (696, 29782195), (786, 26372020), (820, 25278546), (870, 23825756), (984, 21065455), (1048, 19779015), (1109, 18691080), (1160, 17869317), (1189, 17433480), (1230, 16852364), (1310, 15823212), (1572, 13186010), (1640, 12639273), (1740, 11912878), (1965, 10548808), (2218, 9345540), (2378, 8716740), (2460, 8426182), (2620, 7911606), (3144, 6593005), (3327, 6230360), (3480, 5956439), (3567, 5811160), (3799, 5456280), (3930, 5274404), (4436, 4672770), (4756, 4358370), (4920, 4213091), (5240, 3955803), (5371, 3859320), (5545, 3738216), (5945, 3486696), (6654, 3115180), (7134, 2905580), (7598, 2728140), (7860, 2637202), (8872, 2336385), (9512, 2179185), (10742, 1929660), (11090, 1869108), (11397, 1818760), (11890, 1743348), (13308, 1557590), (14268, 1452790), (15196, 1364070), (15720, 1318601), (16113, 1286440), (16635, 1246072), (17835, 1162232), (18995, 1091256), (21484, 964830), (22180, 934554), (22794, 909380), (23780, 871674), (26616, 778795), (26855, 771864), (28536, 726395), (30392, 682035), (32161, 644520), (32226, 643220), (33270, 623036), (35670, 581116), (37990, 545628), (42968, 482415), (44360, 467277), (45469, 455880), (45588, 454690), (47560, 435837), (53710, 385932), (56985, 363752), (64322, 322260), (64452, 321610), (66540, 311518), (71340, 290558), (75980, 272814), (80565, 257288), (90938, 227940), (91176, 227345), (96483, 214840), (107420, 192966), (113970, 181876), (128644, 161130), (128904, 160805), (133080, 155759), (136407, 151960), (142680, 145279)]