1698640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1249}}^1$

素因数の和:1279

約数の個数: 40

約数和(自身を含む): 4185000

約数和(自身を除く): 2486360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1249, 1360, 2498, 4996, 6245, 9992, 12490, 19984, 21233, 24980, 42466, 49960, 84932, 99920, 106165, 169864, 212330, 339728, 424660, 849320, 1698640]

約数ペア:

[(1, 1698640), (2, 849320), (4, 424660), (5, 339728), (8, 212330), (10, 169864), (16, 106165), (17, 99920), (20, 84932), (34, 49960), (40, 42466), (68, 24980), (80, 21233), (85, 19984), (136, 12490), (170, 9992), (272, 6245), (340, 4996), (680, 2498), (1249, 1360)]