2155892360

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{77999}}^1$

素因数の和:78701

約数の個数: 32

約数和(自身を含む): 4857840000

約数和(自身を除く): 2701947640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 13820, 27640, 77999, 155998, 311996, 389995, 623992, 779990, 1559980, 3119960, 53897309, 107794618, 215589236, 269486545, 431178472, 538973090, 1077946180, 2155892360]

約数ペア:

[(1, 2155892360), (2, 1077946180), (4, 538973090), (5, 431178472), (8, 269486545), (10, 215589236), (20, 107794618), (40, 53897309), (691, 3119960), (1382, 1559980), (2764, 779990), (3455, 623992), (5528, 389995), (6910, 311996), (13820, 155998), (27640, 77999)]