28859980

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5749}}^1$

素因数の和:6009

約数の個数: 24

約数和(自身を含む): 60858000

約数和(自身を除く): 31998020

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 5749, 11498, 22996, 28745, 57490, 114980, 1442999, 2885998, 5771996, 7214995, 14429990, 28859980]

約数ペア:

[(1, 28859980), (2, 14429990), (4, 7214995), (5, 5771996), (10, 2885998), (20, 1442999), (251, 114980), (502, 57490), (1004, 28745), (1255, 22996), (2510, 11498), (5020, 5749)]