818420

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 1736448

約数和(自身を除く): 918028

約数列:

[1, 2, 4, 5, 10, 20, 151, 271, 302, 542, 604, 755, 1084, 1355, 1510, 2710, 3020, 5420, 40921, 81842, 163684, 204605, 409210, 818420]

約数ペア:

[(1, 818420), (2, 409210), (4, 204605), (5, 163684), (10, 81842), (20, 40921), (151, 5420), (271, 3020), (302, 2710), (542, 1510), (604, 1355), (755, 1084)]