85781320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 206550000

約数和(自身を除く): 120768680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 505, 680, 808, 1010, 1249, 1717, 2020, 2498, 3434, 4040, 4996, 6245, 6868, 8585, 9992, 12490, 13736, 17170, 21233, 24980, 34340, 42466, 49960, 68680, 84932, 106165, 126149, 169864, 212330, 252298, 424660, 504596, 630745, 849320, 1009192, 1261490, 2144533, 2522980, 4289066, 5045960, 8578132, 10722665, 17156264, 21445330, 42890660, 85781320]

約数ペア:

[(1, 85781320), (2, 42890660), (4, 21445330), (5, 17156264), (8, 10722665), (10, 8578132), (17, 5045960), (20, 4289066), (34, 2522980), (40, 2144533), (68, 1261490), (85, 1009192), (101, 849320), (136, 630745), (170, 504596), (202, 424660), (340, 252298), (404, 212330), (505, 169864), (680, 126149), (808, 106165), (1010, 84932), (1249, 68680), (1717, 49960), (2020, 42466), (2498, 34340), (3434, 24980), (4040, 21233), (4996, 17170), (6245, 13736), (6868, 12490), (8585, 9992)]