25138280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{8609}}^1$

素因数の和:8693

約数の個数: 32

約数和(自身を含む): 57342600

約数和(自身を除く): 32204320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 8609, 17218, 34436, 43045, 68872, 86090, 172180, 344360, 628457, 1256914, 2513828, 3142285, 5027656, 6284570, 12569140, 25138280]

約数ペア:

[(1, 25138280), (2, 12569140), (4, 6284570), (5, 5027656), (8, 3142285), (10, 2513828), (20, 1256914), (40, 628457), (73, 344360), (146, 172180), (292, 86090), (365, 68872), (584, 43045), (730, 34436), (1460, 17218), (2920, 8609)]