399348536

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{5749}}^1$

素因数の和:6231

約数の個数: 32

約数和(自身を含む): 790050000

約数和(自身を除く): 390701464

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 457, 914, 1828, 3656, 5749, 8683, 11498, 17366, 22996, 34732, 45992, 69464, 109231, 218462, 436924, 873848, 2627293, 5254586, 10509172, 21018344, 49918567, 99837134, 199674268, 399348536]

約数ペア:

[(1, 399348536), (2, 199674268), (4, 99837134), (8, 49918567), (19, 21018344), (38, 10509172), (76, 5254586), (152, 2627293), (457, 873848), (914, 436924), (1828, 218462), (3656, 109231), (5749, 69464), (8683, 45992), (11498, 34732), (17366, 22996)]