290294680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{42943}}^1$

素因数の和:42980

約数の個数: 48

約数和(自身を含む): 707287680

約数和(自身を除く): 416993000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 42943, 85886, 171772, 214715, 343544, 429430, 558259, 858860, 1116518, 1717720, 2233036, 2791295, 4466072, 5582590, 7257367, 11165180, 14514734, 22330360, 29029468, 36286835, 58058936, 72573670, 145147340, 290294680]

約数ペア:

[(1, 290294680), (2, 145147340), (4, 72573670), (5, 58058936), (8, 36286835), (10, 29029468), (13, 22330360), (20, 14514734), (26, 11165180), (40, 7257367), (52, 5582590), (65, 4466072), (104, 2791295), (130, 2233036), (169, 1717720), (260, 1116518), (338, 858860), (520, 558259), (676, 429430), (845, 343544), (1352, 214715), (1690, 171772), (3380, 85886), (6760, 42943)]