64635915

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 105878016

約数和(自身を除く): 41242101

約数列:

[1, 3, 5, 15, 71, 137, 213, 355, 411, 443, 685, 1065, 1329, 2055, 2215, 6645, 9727, 29181, 31453, 48635, 60691, 94359, 145905, 157265, 182073, 303455, 471795, 910365, 4309061, 12927183, 21545305, 64635915]

約数ペア:

[(1, 64635915), (3, 21545305), (5, 12927183), (15, 4309061), (71, 910365), (137, 471795), (213, 303455), (355, 182073), (411, 157265), (443, 145905), (685, 94359), (1065, 60691), (1329, 48635), (2055, 31453), (2215, 29181), (6645, 9727)]