20706660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8849}}^1$

素因数の和:8877

約数の個数: 72

約数和(自身を含む): 67649400

約数和(自身を除く): 46942740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8849, 17698, 26547, 35396, 44245, 53094, 79641, 88490, 106188, 115037, 132735, 159282, 176980, 230074, 265470, 318564, 345111, 398205, 460148, 530940, 575185, 690222, 796410, 1035333, 1150370, 1380444, 1592820, 1725555, 2070666, 2300740, 3451110, 4141332, 5176665, 6902220, 10353330, 20706660]

約数ペア:

[(1, 20706660), (2, 10353330), (3, 6902220), (4, 5176665), (5, 4141332), (6, 3451110), (9, 2300740), (10, 2070666), (12, 1725555), (13, 1592820), (15, 1380444), (18, 1150370), (20, 1035333), (26, 796410), (30, 690222), (36, 575185), (39, 530940), (45, 460148), (52, 398205), (60, 345111), (65, 318564), (78, 265470), (90, 230074), (117, 176980), (130, 159282), (156, 132735), (180, 115037), (195, 106188), (234, 88490), (260, 79641), (390, 53094), (468, 44245), (585, 35396), (780, 26547), (1170, 17698), (2340, 8849)]