987257960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1898573}}^1$

素因数の和:1898597

約数の個数: 32

約数和(自身を含む): 2392203240

約数和(自身を除く): 1404945280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1898573, 3797146, 7594292, 9492865, 15188584, 18985730, 24681449, 37971460, 49362898, 75942920, 98725796, 123407245, 197451592, 246814490, 493628980, 987257960]

約数ペア:

[(1, 987257960), (2, 493628980), (4, 246814490), (5, 197451592), (8, 123407245), (10, 98725796), (13, 75942920), (20, 49362898), (26, 37971460), (40, 24681449), (52, 18985730), (65, 15188584), (104, 9492865), (130, 7594292), (260, 3797146), (520, 1898573)]