399726728

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{13457}}^1$

素因数の和:13589

約数の個数: 32

約数和(自身を含む): 775180800

約数和(自身を除く): 375454072

約数列:

[1, 2, 4, 8, 47, 79, 94, 158, 188, 316, 376, 632, 3713, 7426, 13457, 14852, 26914, 29704, 53828, 107656, 632479, 1063103, 1264958, 2126206, 2529916, 4252412, 5059832, 8504824, 49965841, 99931682, 199863364, 399726728]

約数ペア:

[(1, 399726728), (2, 199863364), (4, 99931682), (8, 49965841), (47, 8504824), (79, 5059832), (94, 4252412), (158, 2529916), (188, 2126206), (316, 1264958), (376, 1063103), (632, 632479), (3713, 107656), (7426, 53828), (13457, 29704), (14852, 26914)]