997231870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{23143}}^1$

素因数の和:23320

約数の個数: 32

約数和(自身を含む): 1866332160

約数和(自身を除く): 869100290

約数列:

[1, 2, 5, 10, 31, 62, 139, 155, 278, 310, 695, 1390, 4309, 8618, 21545, 23143, 43090, 46286, 115715, 231430, 717433, 1434866, 3216877, 3587165, 6433754, 7174330, 16084385, 32168770, 99723187, 199446374, 498615935, 997231870]

約数ペア:

[(1, 997231870), (2, 498615935), (5, 199446374), (10, 99723187), (31, 32168770), (62, 16084385), (139, 7174330), (155, 6433754), (278, 3587165), (310, 3216877), (695, 1434866), (1390, 717433), (4309, 231430), (8618, 115715), (21545, 46286), (23143, 43090)]