20643480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:442

約数の個数: 192

約数和(自身を含む): 79017120

約数和(自身を除く): 58373640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 52, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 264, 286, 312, 330, 360, 390, 396, 401, 429, 440, 468, 495, 520, 572, 585, 660, 715, 780, 792, 802, 858, 936, 990, 1144, 1170, 1203, 1287, 1320, 1430, 1560, 1604, 1716, 1980, 2005, 2145, 2340, 2406, 2574, 2860, 3208, 3432, 3609, 3960, 4010, 4290, 4411, 4680, 4812, 5148, 5213, 5720, 6015, 6435, 7218, 8020, 8580, 8822, 9624, 10296, 10426, 12030, 12870, 13233, 14436, 15639, 16040, 17160, 17644, 18045, 20852, 22055, 24060, 25740, 26065, 26466, 28872, 31278, 35288, 36090, 39699, 41704, 44110, 46917, 48120, 51480, 52130, 52932, 57343, 62556, 66165, 72180, 78195, 79398, 88220, 93834, 104260, 105864, 114686, 125112, 132330, 144360, 156390, 158796, 172029, 176440, 187668, 198495, 208520, 229372, 234585, 264660, 286715, 312780, 317592, 344058, 375336, 396990, 458744, 469170, 516087, 529320, 573430, 625560, 688116, 793980, 860145, 938340, 1032174, 1146860, 1376232, 1587960, 1720290, 1876680, 2064348, 2293720, 2580435, 3440580, 4128696, 5160870, 6881160, 10321740, 20643480]

約数ペア:

[(1, 20643480), (2, 10321740), (3, 6881160), (4, 5160870), (5, 4128696), (6, 3440580), (8, 2580435), (9, 2293720), (10, 2064348), (11, 1876680), (12, 1720290), (13, 1587960), (15, 1376232), (18, 1146860), (20, 1032174), (22, 938340), (24, 860145), (26, 793980), (30, 688116), (33, 625560), (36, 573430), (39, 529320), (40, 516087), (44, 469170), (45, 458744), (52, 396990), (55, 375336), (60, 344058), (65, 317592), (66, 312780), (72, 286715), (78, 264660), (88, 234585), (90, 229372), (99, 208520), (104, 198495), (110, 187668), (117, 176440), (120, 172029), (130, 158796), (132, 156390), (143, 144360), (156, 132330), (165, 125112), (180, 114686), (195, 105864), (198, 104260), (220, 93834), (234, 88220), (260, 79398), (264, 78195), (286, 72180), (312, 66165), (330, 62556), (360, 57343), (390, 52932), (396, 52130), (401, 51480), (429, 48120), (440, 46917), (468, 44110), (495, 41704), (520, 39699), (572, 36090), (585, 35288), (660, 31278), (715, 28872), (780, 26466), (792, 26065), (802, 25740), (858, 24060), (936, 22055), (990, 20852), (1144, 18045), (1170, 17644), (1203, 17160), (1287, 16040), (1320, 15639), (1430, 14436), (1560, 13233), (1604, 12870), (1716, 12030), (1980, 10426), (2005, 10296), (2145, 9624), (2340, 8822), (2406, 8580), (2574, 8020), (2860, 7218), (3208, 6435), (3432, 6015), (3609, 5720), (3960, 5213), (4010, 5148), (4290, 4812), (4411, 4680)]