30961520

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3617}}^1$

素因数の和:3737

約数の個数: 40

約数和(自身を含む): 72678384

約数和(自身を除く): 41716864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 3617, 4280, 7234, 8560, 14468, 18085, 28936, 36170, 57872, 72340, 144680, 289360, 387019, 774038, 1548076, 1935095, 3096152, 3870190, 6192304, 7740380, 15480760, 30961520]

約数ペア:

[(1, 30961520), (2, 15480760), (4, 7740380), (5, 6192304), (8, 3870190), (10, 3096152), (16, 1935095), (20, 1548076), (40, 774038), (80, 387019), (107, 289360), (214, 144680), (428, 72340), (535, 57872), (856, 36170), (1070, 28936), (1712, 18085), (2140, 14468), (3617, 8560), (4280, 7234)]