12729680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3881}}^1$

素因数の和:3935

約数の個数: 40

約数和(自身を含む): 30326184

約数和(自身を除く): 17596504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 3881, 7762, 15524, 19405, 31048, 38810, 62096, 77620, 155240, 159121, 310480, 318242, 636484, 795605, 1272968, 1591210, 2545936, 3182420, 6364840, 12729680]

約数ペア:

[(1, 12729680), (2, 6364840), (4, 3182420), (5, 2545936), (8, 1591210), (10, 1272968), (16, 795605), (20, 636484), (40, 318242), (41, 310480), (80, 159121), (82, 155240), (164, 77620), (205, 62096), (328, 38810), (410, 31048), (656, 19405), (820, 15524), (1640, 7762), (3280, 3881)]