207947480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399899}}^1$

素因数の和:399923

約数の個数: 32

約数和(自身を含む): 503874000

約数和(自身を除く): 295926520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 399899, 799798, 1599596, 1999495, 3199192, 3998990, 5198687, 7997980, 10397374, 15995960, 20794748, 25993435, 41589496, 51986870, 103973740, 207947480]

約数ペア:

[(1, 207947480), (2, 103973740), (4, 51986870), (5, 41589496), (8, 25993435), (10, 20794748), (13, 15995960), (20, 10397374), (26, 7997980), (40, 5198687), (52, 3998990), (65, 3199192), (104, 1999495), (130, 1599596), (260, 799798), (520, 399899)]