1916840

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{277}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 4353480

約数和(自身を除く): 2436640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 277, 346, 554, 692, 865, 1108, 1384, 1385, 1730, 2216, 2770, 3460, 5540, 6920, 11080, 47921, 95842, 191684, 239605, 383368, 479210, 958420, 1916840]

約数ペア:

[(1, 1916840), (2, 958420), (4, 479210), (5, 383368), (8, 239605), (10, 191684), (20, 95842), (40, 47921), (173, 11080), (277, 6920), (346, 5540), (554, 3460), (692, 2770), (865, 2216), (1108, 1730), (1384, 1385)]