71460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397}}^1$

素因数の和:412

約数の個数: 36

約数和(自身を含む): 217308

約数和(自身を除く): 145848

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 1191, 1588, 1985, 2382, 3573, 3970, 4764, 5955, 7146, 7940, 11910, 14292, 17865, 23820, 35730, 71460]

約数ペア:

[(1, 71460), (2, 35730), (3, 23820), (4, 17865), (5, 14292), (6, 11910), (9, 7940), (10, 7146), (12, 5955), (15, 4764), (18, 3970), (20, 3573), (30, 2382), (36, 1985), (45, 1588), (60, 1191), (90, 794), (180, 397)]