18260380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 41580000

約数和(自身を除く): 23319620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1249, 1462, 2498, 2924, 3655, 4996, 6245, 7310, 12490, 14620, 21233, 24980, 42466, 53707, 84932, 106165, 107414, 212330, 214828, 268535, 424660, 537070, 913019, 1074140, 1826038, 3652076, 4565095, 9130190, 18260380]

約数ペア:

[(1, 18260380), (2, 9130190), (4, 4565095), (5, 3652076), (10, 1826038), (17, 1074140), (20, 913019), (34, 537070), (43, 424660), (68, 268535), (85, 214828), (86, 212330), (170, 107414), (172, 106165), (215, 84932), (340, 53707), (430, 42466), (731, 24980), (860, 21233), (1249, 14620), (1462, 12490), (2498, 7310), (2924, 6245), (3655, 4996)]