646147630

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{21661}}^1$

素因数の和:21844

約数の個数: 32

約数和(自身を含む): 1232134560

約数和(自身を除く): 585986930

約数列:

[1, 2, 5, 10, 19, 38, 95, 157, 190, 314, 785, 1570, 2983, 5966, 14915, 21661, 29830, 43322, 108305, 216610, 411559, 823118, 2057795, 3400777, 4115590, 6801554, 17003885, 34007770, 64614763, 129229526, 323073815, 646147630]

約数ペア:

[(1, 646147630), (2, 323073815), (5, 129229526), (10, 64614763), (19, 34007770), (38, 17003885), (95, 6801554), (157, 4115590), (190, 3400777), (314, 2057795), (785, 823118), (1570, 411559), (2983, 216610), (5966, 108305), (14915, 43322), (21661, 29830)]