19420440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 64108800

約数和(自身を除く): 44688360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 59, 60, 65, 78, 104, 118, 120, 130, 156, 177, 195, 211, 236, 260, 295, 312, 354, 390, 422, 472, 520, 590, 633, 708, 767, 780, 844, 885, 1055, 1180, 1266, 1416, 1534, 1560, 1688, 1770, 2110, 2301, 2360, 2532, 2743, 3068, 3165, 3540, 3835, 4220, 4602, 5064, 5486, 6136, 6330, 7080, 7670, 8229, 8440, 9204, 10972, 11505, 12449, 12660, 13715, 15340, 16458, 18408, 21944, 23010, 24898, 25320, 27430, 30680, 32916, 37347, 41145, 46020, 49796, 54860, 62245, 65832, 74694, 82290, 92040, 99592, 109720, 124490, 149388, 161837, 164580, 186735, 248980, 298776, 323674, 329160, 373470, 485511, 497960, 647348, 746940, 809185, 971022, 1294696, 1493880, 1618370, 1942044, 2427555, 3236740, 3884088, 4855110, 6473480, 9710220, 19420440]

約数ペア:

[(1, 19420440), (2, 9710220), (3, 6473480), (4, 4855110), (5, 3884088), (6, 3236740), (8, 2427555), (10, 1942044), (12, 1618370), (13, 1493880), (15, 1294696), (20, 971022), (24, 809185), (26, 746940), (30, 647348), (39, 497960), (40, 485511), (52, 373470), (59, 329160), (60, 323674), (65, 298776), (78, 248980), (104, 186735), (118, 164580), (120, 161837), (130, 149388), (156, 124490), (177, 109720), (195, 99592), (211, 92040), (236, 82290), (260, 74694), (295, 65832), (312, 62245), (354, 54860), (390, 49796), (422, 46020), (472, 41145), (520, 37347), (590, 32916), (633, 30680), (708, 27430), (767, 25320), (780, 24898), (844, 23010), (885, 21944), (1055, 18408), (1180, 16458), (1266, 15340), (1416, 13715), (1534, 12660), (1560, 12449), (1688, 11505), (1770, 10972), (2110, 9204), (2301, 8440), (2360, 8229), (2532, 7670), (2743, 7080), (3068, 6330), (3165, 6136), (3540, 5486), (3835, 5064), (4220, 4602)]