1291240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1699}}^1$

素因数の和:1729

約数の個数: 32

約数和(自身を含む): 3060000

約数和(自身を除く): 1768760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1699, 3398, 6796, 8495, 13592, 16990, 32281, 33980, 64562, 67960, 129124, 161405, 258248, 322810, 645620, 1291240]

約数ペア:

[(1, 1291240), (2, 645620), (4, 322810), (5, 258248), (8, 161405), (10, 129124), (19, 67960), (20, 64562), (38, 33980), (40, 32281), (76, 16990), (95, 13592), (152, 8495), (190, 6796), (380, 3398), (760, 1699)]