81796180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{2129}}^1$

素因数の和:2268

約数の個数: 48

約数和(自身を含む): 183571920

約数和(自身を除く): 101775740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 113, 170, 226, 340, 452, 565, 1130, 1921, 2129, 2260, 3842, 4258, 7684, 8516, 9605, 10645, 19210, 21290, 36193, 38420, 42580, 72386, 144772, 180965, 240577, 361930, 481154, 723860, 962308, 1202885, 2405770, 4089809, 4811540, 8179618, 16359236, 20449045, 40898090, 81796180]

約数ペア:

[(1, 81796180), (2, 40898090), (4, 20449045), (5, 16359236), (10, 8179618), (17, 4811540), (20, 4089809), (34, 2405770), (68, 1202885), (85, 962308), (113, 723860), (170, 481154), (226, 361930), (340, 240577), (452, 180965), (565, 144772), (1130, 72386), (1921, 42580), (2129, 38420), (2260, 36193), (3842, 21290), (4258, 19210), (7684, 10645), (8516, 9605)]