18828860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{701}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 23628100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 701, 790, 1343, 1402, 1580, 2686, 2804, 3505, 5372, 6715, 7010, 11917, 13430, 14020, 23834, 26860, 47668, 55379, 59585, 110758, 119170, 221516, 238340, 276895, 553790, 941443, 1107580, 1882886, 3765772, 4707215, 9414430, 18828860]

約数ペア:

[(1, 18828860), (2, 9414430), (4, 4707215), (5, 3765772), (10, 1882886), (17, 1107580), (20, 941443), (34, 553790), (68, 276895), (79, 238340), (85, 221516), (158, 119170), (170, 110758), (316, 59585), (340, 55379), (395, 47668), (701, 26860), (790, 23834), (1343, 14020), (1402, 13430), (1580, 11917), (2686, 7010), (2804, 6715), (3505, 5372)]