71487180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397151}}^1$

素因数の和:397166

約数の個数: 36

約数和(自身を含む): 216844992

約数和(自身を除く): 145357812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397151, 794302, 1191453, 1588604, 1985755, 2382906, 3574359, 3971510, 4765812, 5957265, 7148718, 7943020, 11914530, 14297436, 17871795, 23829060, 35743590, 71487180]

約数ペア:

[(1, 71487180), (2, 35743590), (3, 23829060), (4, 17871795), (5, 14297436), (6, 11914530), (9, 7943020), (10, 7148718), (12, 5957265), (15, 4765812), (18, 3971510), (20, 3574359), (30, 2382906), (36, 1985755), (45, 1588604), (60, 1191453), (90, 794302), (180, 397151)]