747980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 1587600

約数和(自身を除く): 839620

約数列:

[1, 2, 4, 5, 10, 20, 149, 251, 298, 502, 596, 745, 1004, 1255, 1490, 2510, 2980, 5020, 37399, 74798, 149596, 186995, 373990, 747980]

約数ペア:

[(1, 747980), (2, 373990), (4, 186995), (5, 149596), (10, 74798), (20, 37399), (149, 5020), (251, 2980), (298, 2510), (502, 1490), (596, 1255), (745, 1004)]