19188680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{68531}}^1$

素因数の和:68549

約数の個数: 32

約数和(自身を含む): 49343040

約数和(自身を除く): 30154360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 68531, 137062, 274124, 342655, 479717, 548248, 685310, 959434, 1370620, 1918868, 2398585, 2741240, 3837736, 4797170, 9594340, 19188680]

約数ペア:

[(1, 19188680), (2, 9594340), (4, 4797170), (5, 3837736), (7, 2741240), (8, 2398585), (10, 1918868), (14, 1370620), (20, 959434), (28, 685310), (35, 548248), (40, 479717), (56, 342655), (70, 274124), (140, 137062), (280, 68531)]