31191740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 68474784

約数和(自身を除く): 37283044

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 610, 691, 740, 1220, 1382, 2257, 2764, 3455, 4514, 6910, 9028, 11285, 13820, 22570, 25567, 42151, 45140, 51134, 84302, 102268, 127835, 168604, 210755, 255670, 421510, 511340, 843020, 1559587, 3119174, 6238348, 7797935, 15595870, 31191740]

約数ペア:

[(1, 31191740), (2, 15595870), (4, 7797935), (5, 6238348), (10, 3119174), (20, 1559587), (37, 843020), (61, 511340), (74, 421510), (122, 255670), (148, 210755), (185, 168604), (244, 127835), (305, 102268), (370, 84302), (610, 51134), (691, 45140), (740, 42151), (1220, 25567), (1382, 22570), (2257, 13820), (2764, 11285), (3455, 9028), (4514, 6910)]