90385040

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{10559}}^1$

素因数の和:10679

約数の個数: 40

約数和(自身を含む): 212129280

約数和(自身を除く): 121744240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 10559, 21118, 42236, 52795, 84472, 105590, 168944, 211180, 422360, 844720, 1129813, 2259626, 4519252, 5649065, 9038504, 11298130, 18077008, 22596260, 45192520, 90385040]

約数ペア:

[(1, 90385040), (2, 45192520), (4, 22596260), (5, 18077008), (8, 11298130), (10, 9038504), (16, 5649065), (20, 4519252), (40, 2259626), (80, 1129813), (107, 844720), (214, 422360), (428, 211180), (535, 168944), (856, 105590), (1070, 84472), (1712, 52795), (2140, 42236), (4280, 21118), (8560, 10559)]