717976520

素因数分解:

$2^3\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{8423}}^1$

素因数の和:10565

約数の個数: 32

約数和(自身を含む): 1616397120

約数和(自身を除く): 898420600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2131, 4262, 8423, 8524, 10655, 16846, 17048, 21310, 33692, 42115, 42620, 67384, 84230, 85240, 168460, 336920, 17949413, 35898826, 71797652, 89747065, 143595304, 179494130, 358988260, 717976520]

約数ペア:

[(1, 717976520), (2, 358988260), (4, 179494130), (5, 143595304), (8, 89747065), (10, 71797652), (20, 35898826), (40, 17949413), (2131, 336920), (4262, 168460), (8423, 85240), (8524, 84230), (10655, 67384), (16846, 42620), (17048, 42115), (21310, 33692)]