646987406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{314989}}^1$

素因数の和:315083

約数の個数: 16

約数和(自身を含む): 1058366400

約数和(自身を除く): 411378994

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 314989, 629978, 4094857, 8189714, 24884131, 49768262, 323493703, 646987406]

約数ペア:

[(1, 646987406), (2, 323493703), (13, 49768262), (26, 24884131), (79, 8189714), (158, 4094857), (1027, 629978), (2054, 314989)]