40312780

素因数分解:

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

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 90387360

約数和(自身を除く): 50074580

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 278, 340, 556, 695, 853, 1390, 1706, 2363, 2780, 3412, 4265, 4726, 8530, 9452, 11815, 14501, 17060, 23630, 29002, 47260, 58004, 72505, 118567, 145010, 237134, 290020, 474268, 592835, 1185670, 2015639, 2371340, 4031278, 8062556, 10078195, 20156390, 40312780]

約数ペア:

[(1, 40312780), (2, 20156390), (4, 10078195), (5, 8062556), (10, 4031278), (17, 2371340), (20, 2015639), (34, 1185670), (68, 592835), (85, 474268), (139, 290020), (170, 237134), (278, 145010), (340, 118567), (556, 72505), (695, 58004), (853, 47260), (1390, 29002), (1706, 23630), (2363, 17060), (2780, 14501), (3412, 11815), (4265, 9452), (4726, 8530)]