64381775

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 82286400

約数和(自身を除く): 17904625

約数列:

[1, 5, 25, 47, 157, 235, 349, 785, 1175, 1745, 3925, 7379, 8725, 16403, 36895, 54793, 82015, 184475, 273965, 410075, 1369825, 2575271, 12876355, 64381775]

約数ペア:

[(1, 64381775), (5, 12876355), (25, 2575271), (47, 1369825), (157, 410075), (235, 273965), (349, 184475), (785, 82015), (1175, 54793), (1745, 36895), (3925, 16403), (7379, 8725)]