20132840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5531}}^1$

素因数の和:5562

約数の個数: 64

約数和(自身を含む): 55762560

約数和(自身を除く): 35629720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5531, 11062, 22124, 27655, 38717, 44248, 55310, 71903, 77434, 110620, 143806, 154868, 193585, 221240, 287612, 309736, 359515, 387170, 503321, 575224, 719030, 774340, 1006642, 1438060, 1548680, 2013284, 2516605, 2876120, 4026568, 5033210, 10066420, 20132840]

約数ペア:

[(1, 20132840), (2, 10066420), (4, 5033210), (5, 4026568), (7, 2876120), (8, 2516605), (10, 2013284), (13, 1548680), (14, 1438060), (20, 1006642), (26, 774340), (28, 719030), (35, 575224), (40, 503321), (52, 387170), (56, 359515), (65, 309736), (70, 287612), (91, 221240), (104, 193585), (130, 154868), (140, 143806), (182, 110620), (260, 77434), (280, 71903), (364, 55310), (455, 44248), (520, 38717), (728, 27655), (910, 22124), (1820, 11062), (3640, 5531)]