1636840

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 3720960

約数和(自身を除く): 2084120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 271, 302, 542, 604, 755, 1084, 1208, 1355, 1510, 2168, 2710, 3020, 5420, 6040, 10840, 40921, 81842, 163684, 204605, 327368, 409210, 818420, 1636840]

約数ペア:

[(1, 1636840), (2, 818420), (4, 409210), (5, 327368), (8, 204605), (10, 163684), (20, 81842), (40, 40921), (151, 10840), (271, 6040), (302, 5420), (542, 3020), (604, 2710), (755, 2168), (1084, 1510), (1208, 1355)]