51997540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11981}}^1$

素因数の和:12028

約数の個数: 48

約数和(自身を含む): 128830464

約数和(自身を除く): 76832924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 11981, 23962, 47924, 59905, 83867, 119810, 167734, 239620, 335468, 371411, 419335, 742822, 838670, 1485644, 1677340, 1857055, 2599877, 3714110, 5199754, 7428220, 10399508, 12999385, 25998770, 51997540]

約数ペア:

[(1, 51997540), (2, 25998770), (4, 12999385), (5, 10399508), (7, 7428220), (10, 5199754), (14, 3714110), (20, 2599877), (28, 1857055), (31, 1677340), (35, 1485644), (62, 838670), (70, 742822), (124, 419335), (140, 371411), (155, 335468), (217, 239620), (310, 167734), (434, 119810), (620, 83867), (868, 59905), (1085, 47924), (2170, 23962), (4340, 11981)]