25102540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 57868272

約数和(自身を除く): 32765732

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 101, 170, 172, 202, 215, 289, 340, 404, 430, 505, 578, 731, 860, 1010, 1156, 1445, 1462, 1717, 2020, 2890, 2924, 3434, 3655, 4343, 5780, 6868, 7310, 8585, 8686, 12427, 14620, 17170, 17372, 21715, 24854, 29189, 34340, 43430, 49708, 58378, 62135, 73831, 86860, 116756, 124270, 145945, 147662, 248540, 291890, 295324, 369155, 583780, 738310, 1255127, 1476620, 2510254, 5020508, 6275635, 12551270, 25102540]

約数ペア:

[(1, 25102540), (2, 12551270), (4, 6275635), (5, 5020508), (10, 2510254), (17, 1476620), (20, 1255127), (34, 738310), (43, 583780), (68, 369155), (85, 295324), (86, 291890), (101, 248540), (170, 147662), (172, 145945), (202, 124270), (215, 116756), (289, 86860), (340, 73831), (404, 62135), (430, 58378), (505, 49708), (578, 43430), (731, 34340), (860, 29189), (1010, 24854), (1156, 21715), (1445, 17372), (1462, 17170), (1717, 14620), (2020, 12427), (2890, 8686), (2924, 8585), (3434, 7310), (3655, 6868), (4343, 5780)]