20183280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6469}}^1$

素因数の和:6498

約数の個数: 80

約数和(自身を含む): 67391520

約数和(自身を除く): 47208240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6469, 12938, 19407, 25876, 32345, 38814, 51752, 64690, 77628, 84097, 97035, 103504, 129380, 155256, 168194, 194070, 252291, 258760, 310512, 336388, 388140, 420485, 504582, 517520, 672776, 776280, 840970, 1009164, 1261455, 1345552, 1552560, 1681940, 2018328, 2522910, 3363880, 4036656, 5045820, 6727760, 10091640, 20183280]

約数ペア:

[(1, 20183280), (2, 10091640), (3, 6727760), (4, 5045820), (5, 4036656), (6, 3363880), (8, 2522910), (10, 2018328), (12, 1681940), (13, 1552560), (15, 1345552), (16, 1261455), (20, 1009164), (24, 840970), (26, 776280), (30, 672776), (39, 517520), (40, 504582), (48, 420485), (52, 388140), (60, 336388), (65, 310512), (78, 258760), (80, 252291), (104, 194070), (120, 168194), (130, 155256), (156, 129380), (195, 103504), (208, 97035), (240, 84097), (260, 77628), (312, 64690), (390, 51752), (520, 38814), (624, 32345), (780, 25876), (1040, 19407), (1560, 12938), (3120, 6469)]