402916840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{245681}}^1$

素因数の和:245733

約数の個数: 32

約数和(自身を含む): 928677960

約数和(自身を除く): 525761120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 245681, 491362, 982724, 1228405, 1965448, 2456810, 4913620, 9827240, 10072921, 20145842, 40291684, 50364605, 80583368, 100729210, 201458420, 402916840]

約数ペア:

[(1, 402916840), (2, 201458420), (4, 100729210), (5, 80583368), (8, 50364605), (10, 40291684), (20, 20145842), (40, 10072921), (41, 9827240), (82, 4913620), (164, 2456810), (205, 1965448), (328, 1228405), (410, 982724), (820, 491362), (1640, 245681)]