65154580

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{12979}}^1$

素因数の和:13239

約数の個数: 24

約数和(自身を含む): 137380320

約数和(自身を除く): 72225740

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 12979, 25958, 51916, 64895, 129790, 259580, 3257729, 6515458, 13030916, 16288645, 32577290, 65154580]

約数ペア:

[(1, 65154580), (2, 32577290), (4, 16288645), (5, 13030916), (10, 6515458), (20, 3257729), (251, 259580), (502, 129790), (1004, 64895), (1255, 51916), (2510, 25958), (5020, 12979)]