201642040

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{12959}}^1$

素因数の和:13359

約数の個数: 32

約数和(自身を含む): 454896000

約数和(自身を除く): 253253960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 12959, 15560, 25918, 51836, 64795, 103672, 129590, 259180, 518360, 5041051, 10082102, 20164204, 25205255, 40328408, 50410510, 100821020, 201642040]

約数ペア:

[(1, 201642040), (2, 100821020), (4, 50410510), (5, 40328408), (8, 25205255), (10, 20164204), (20, 10082102), (40, 5041051), (389, 518360), (778, 259180), (1556, 129590), (1945, 103672), (3112, 64795), (3890, 51836), (7780, 25918), (12959, 15560)]