20156390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{853}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 38737440

約数和(自身を除く): 18581050

約数列:

[1, 2, 5, 10, 17, 34, 85, 139, 170, 278, 695, 853, 1390, 1706, 2363, 4265, 4726, 8530, 11815, 14501, 23630, 29002, 72505, 118567, 145010, 237134, 592835, 1185670, 2015639, 4031278, 10078195, 20156390]

約数ペア:

[(1, 20156390), (2, 10078195), (5, 4031278), (10, 2015639), (17, 1185670), (34, 592835), (85, 237134), (139, 145010), (170, 118567), (278, 72505), (695, 29002), (853, 23630), (1390, 14501), (1706, 11815), (2363, 8530), (4265, 4726)]