15895476880

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{404671}}^1$

素因数の和:405175

約数の個数: 40

約数和(自身を含む): 37032344064

約数和(自身を除く): 21136867184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 19640, 39280, 404671, 809342, 1618684, 2023355, 3237368, 4046710, 6474736, 8093420, 16186840, 32373680, 198693461, 397386922, 794773844, 993467305, 1589547688, 1986934610, 3179095376, 3973869220, 7947738440, 15895476880]

約数ペア:

[(1, 15895476880), (2, 7947738440), (4, 3973869220), (5, 3179095376), (8, 1986934610), (10, 1589547688), (16, 993467305), (20, 794773844), (40, 397386922), (80, 198693461), (491, 32373680), (982, 16186840), (1964, 8093420), (2455, 6474736), (3928, 4046710), (4910, 3237368), (7856, 2023355), (9820, 1618684), (19640, 809342), (39280, 404671)]