71621460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397897}}^1$

素因数の和:397912

約数の個数: 36

約数和(自身を含む): 217252308

約数和(自身を除く): 145630848

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397897, 795794, 1193691, 1591588, 1989485, 2387382, 3581073, 3978970, 4774764, 5968455, 7162146, 7957940, 11936910, 14324292, 17905365, 23873820, 35810730, 71621460]

約数ペア:

[(1, 71621460), (2, 35810730), (3, 23873820), (4, 17905365), (5, 14324292), (6, 11936910), (9, 7957940), (10, 7162146), (12, 5968455), (15, 4774764), (18, 3978970), (20, 3581073), (30, 2387382), (36, 1989485), (45, 1591588), (60, 1193691), (90, 795794), (180, 397897)]