865964060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{7949}}^1$

素因数の和:8390

約数の個数: 48

約数和(自身を含む): 1963332000

約数和(自身を除く): 1097367940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 419, 838, 1676, 2095, 4190, 5447, 7949, 8380, 10894, 15898, 21788, 27235, 31796, 39745, 54470, 79490, 103337, 108940, 158980, 206674, 413348, 516685, 1033370, 2066740, 3330631, 6661262, 13322524, 16653155, 33306310, 43298203, 66612620, 86596406, 173192812, 216491015, 432982030, 865964060]

約数ペア:

[(1, 865964060), (2, 432982030), (4, 216491015), (5, 173192812), (10, 86596406), (13, 66612620), (20, 43298203), (26, 33306310), (52, 16653155), (65, 13322524), (130, 6661262), (260, 3330631), (419, 2066740), (838, 1033370), (1676, 516685), (2095, 413348), (4190, 206674), (5447, 158980), (7949, 108940), (8380, 103337), (10894, 79490), (15898, 54470), (21788, 39745), (27235, 31796)]