78640540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9661}}^1$

素因数の和:9718

約数の個数: 48

約数和(自身を含む): 185046624

約数和(自身を除く): 106406084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 9661, 19322, 38644, 48305, 96610, 106271, 193220, 212542, 357457, 425084, 531355, 714914, 1062710, 1429828, 1787285, 2125420, 3574570, 3932027, 7149140, 7864054, 15728108, 19660135, 39320270, 78640540]

約数ペア:

[(1, 78640540), (2, 39320270), (4, 19660135), (5, 15728108), (10, 7864054), (11, 7149140), (20, 3932027), (22, 3574570), (37, 2125420), (44, 1787285), (55, 1429828), (74, 1062710), (110, 714914), (148, 531355), (185, 425084), (220, 357457), (370, 212542), (407, 193220), (740, 106271), (814, 96610), (1628, 48305), (2035, 38644), (4070, 19322), (8140, 9661)]