64860640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31183}}^1$

素因数の和:31211

約数の個数: 48

約数和(自身を含む): 165025728

約数和(自身を除く): 100165088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 31183, 62366, 124732, 155915, 249464, 311830, 405379, 498928, 623660, 810758, 997856, 1247320, 1621516, 2026895, 2494640, 3243032, 4053790, 4989280, 6486064, 8107580, 12972128, 16215160, 32430320, 64860640]

約数ペア:

[(1, 64860640), (2, 32430320), (4, 16215160), (5, 12972128), (8, 8107580), (10, 6486064), (13, 4989280), (16, 4053790), (20, 3243032), (26, 2494640), (32, 2026895), (40, 1621516), (52, 1247320), (65, 997856), (80, 810758), (104, 623660), (130, 498928), (160, 405379), (208, 311830), (260, 249464), (416, 155915), (520, 124732), (1040, 62366), (2080, 31183)]