18577040

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3181}}^1$

素因数の和:3267

約数の個数: 40

約数和(自身を含む): 43797048

約数和(自身を除く): 25220008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3181, 5840, 6362, 12724, 15905, 25448, 31810, 50896, 63620, 127240, 232213, 254480, 464426, 928852, 1161065, 1857704, 2322130, 3715408, 4644260, 9288520, 18577040]

約数ペア:

[(1, 18577040), (2, 9288520), (4, 4644260), (5, 3715408), (8, 2322130), (10, 1857704), (16, 1161065), (20, 928852), (40, 464426), (73, 254480), (80, 232213), (146, 127240), (292, 63620), (365, 50896), (584, 31810), (730, 25448), (1168, 15905), (1460, 12724), (2920, 6362), (3181, 5840)]