388501904

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{80669}}^1$

素因数の和:80727

約数の個数: 40

約数和(自身を含む): 880271040

約数和(自身を除く): 491769136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4816, 80669, 161338, 322676, 564683, 645352, 1129366, 1290704, 2258732, 3468767, 4517464, 6937534, 9034928, 13875068, 24281369, 27750136, 48562738, 55500272, 97125476, 194250952, 388501904]

約数ペア:

[(1, 388501904), (2, 194250952), (4, 97125476), (7, 55500272), (8, 48562738), (14, 27750136), (16, 24281369), (28, 13875068), (43, 9034928), (56, 6937534), (86, 4517464), (112, 3468767), (172, 2258732), (301, 1290704), (344, 1129366), (602, 645352), (688, 564683), (1204, 322676), (2408, 161338), (4816, 80669)]