491328560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{361271}}^1$

素因数の和:361301

約数の個数: 40

約数和(自身を含む): 1209538656

約数和(自身を除く): 718210096

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 361271, 722542, 1445084, 1806355, 2890168, 3612710, 5780336, 6141607, 7225420, 12283214, 14450840, 24566428, 28901680, 30708035, 49132856, 61416070, 98265712, 122832140, 245664280, 491328560]

約数ペア:

[(1, 491328560), (2, 245664280), (4, 122832140), (5, 98265712), (8, 61416070), (10, 49132856), (16, 30708035), (17, 28901680), (20, 24566428), (34, 14450840), (40, 12283214), (68, 7225420), (80, 6141607), (85, 5780336), (136, 3612710), (170, 2890168), (272, 1806355), (340, 1445084), (680, 722542), (1360, 361271)]