19885160

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{883}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 44871840

約数和(自身を除く): 24986680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 883, 1126, 1766, 2252, 2815, 3532, 4415, 4504, 5630, 7064, 8830, 11260, 17660, 22520, 35320, 497129, 994258, 1988516, 2485645, 3977032, 4971290, 9942580, 19885160]

約数ペア:

[(1, 19885160), (2, 9942580), (4, 4971290), (5, 3977032), (8, 2485645), (10, 1988516), (20, 994258), (40, 497129), (563, 35320), (883, 22520), (1126, 17660), (1766, 11260), (2252, 8830), (2815, 7064), (3532, 5630), (4415, 4504)]