51424220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{691}}^1$

素因数の和:822

約数の個数: 36

約数和(自身を含む): 109949112

約数和(自身を除く): 58524892

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 691, 1220, 1382, 2764, 3455, 3721, 6910, 7442, 13820, 14884, 18605, 37210, 42151, 74420, 84302, 168604, 210755, 421510, 843020, 2571211, 5142422, 10284844, 12856055, 25712110, 51424220]

約数ペア:

[(1, 51424220), (2, 25712110), (4, 12856055), (5, 10284844), (10, 5142422), (20, 2571211), (61, 843020), (122, 421510), (244, 210755), (305, 168604), (610, 84302), (691, 74420), (1220, 42151), (1382, 37210), (2764, 18605), (3455, 14884), (3721, 13820), (6910, 7442)]