639976402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{53861}}^1$

素因数の和:54333

約数の個数: 16

約数和(自身を含む): 1036089432

約数和(自身を除く): 396113030

約数列:

[1, 2, 13, 26, 457, 914, 5941, 11882, 53861, 107722, 700193, 1400386, 24614477, 49228954, 319988201, 639976402]

約数ペア:

[(1, 639976402), (2, 319988201), (13, 49228954), (26, 24614477), (457, 1400386), (914, 700193), (5941, 107722), (11882, 53861)]