40268540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2539}}^1$

素因数の和:2622

約数の個数: 48

約数和(自身を含む): 92598240

約数和(自身を除く): 52329700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 2539, 3172, 3965, 5078, 7930, 10156, 12695, 15860, 25390, 33007, 50780, 66014, 132028, 154879, 165035, 309758, 330070, 619516, 660140, 774395, 1548790, 2013427, 3097580, 4026854, 8053708, 10067135, 20134270, 40268540]

約数ペア:

[(1, 40268540), (2, 20134270), (4, 10067135), (5, 8053708), (10, 4026854), (13, 3097580), (20, 2013427), (26, 1548790), (52, 774395), (61, 660140), (65, 619516), (122, 330070), (130, 309758), (244, 165035), (260, 154879), (305, 132028), (610, 66014), (793, 50780), (1220, 33007), (1586, 25390), (2539, 15860), (3172, 12695), (3965, 10156), (5078, 7930)]