2158208065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{2671}}^1$

素因数の和:3121

約数の個数: 32

約数和(自身を含む): 2887299072

約数和(自身を除く): 729091007

約数列:

[1, 5, 13, 31, 65, 155, 401, 403, 2005, 2015, 2671, 5213, 12431, 13355, 26065, 34723, 62155, 82801, 161603, 173615, 414005, 808015, 1071071, 1076413, 5355355, 5382065, 13923923, 33203201, 69619615, 166016005, 431641613, 2158208065]

約数ペア:

[(1, 2158208065), (5, 431641613), (13, 166016005), (31, 69619615), (65, 33203201), (155, 13923923), (401, 5382065), (403, 5355355), (2005, 1076413), (2015, 1071071), (2671, 808015), (5213, 414005), (12431, 173615), (13355, 161603), (26065, 82801), (34723, 62155)]