8709140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 20611584

約数和(自身を除く): 11902444

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1277, 1364, 1705, 2554, 3410, 5108, 6385, 6820, 12770, 14047, 25540, 28094, 39587, 56188, 70235, 79174, 140470, 158348, 197935, 280940, 395870, 435457, 791740, 870914, 1741828, 2177285, 4354570, 8709140]

約数ペア:

[(1, 8709140), (2, 4354570), (4, 2177285), (5, 1741828), (10, 870914), (11, 791740), (20, 435457), (22, 395870), (31, 280940), (44, 197935), (55, 158348), (62, 140470), (110, 79174), (124, 70235), (155, 56188), (220, 39587), (310, 28094), (341, 25540), (620, 14047), (682, 12770), (1277, 6820), (1364, 6385), (1705, 5108), (2554, 3410)]