40393990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44389}}^1$

素因数の和:44416

約数の個数: 32

約数和(自身を含む): 89490240

約数和(自身を除く): 49096250

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 44389, 88778, 221945, 310723, 443890, 577057, 621446, 1154114, 1553615, 2885285, 3107230, 4039399, 5770570, 8078798, 20196995, 40393990]

約数ペア:

[(1, 40393990), (2, 20196995), (5, 8078798), (7, 5770570), (10, 4039399), (13, 3107230), (14, 2885285), (26, 1553615), (35, 1154114), (65, 621446), (70, 577057), (91, 443890), (130, 310723), (182, 221945), (455, 88778), (910, 44389)]