349702960

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{20717}}^1$

素因数の和:20941

約数の個数: 40

約数和(自身を含む): 816952176

約数和(自身を除く): 467249216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 8440, 16880, 20717, 41434, 82868, 103585, 165736, 207170, 331472, 414340, 828680, 1657360, 4371287, 8742574, 17485148, 21856435, 34970296, 43712870, 69940592, 87425740, 174851480, 349702960]

約数ペア:

[(1, 349702960), (2, 174851480), (4, 87425740), (5, 69940592), (8, 43712870), (10, 34970296), (16, 21856435), (20, 17485148), (40, 8742574), (80, 4371287), (211, 1657360), (422, 828680), (844, 414340), (1055, 331472), (1688, 207170), (2110, 165736), (3376, 103585), (4220, 82868), (8440, 41434), (16880, 20717)]