71990775

素因数分解:

$3^4\times 5^2\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:582

約数の個数: 60

約数和(自身を含む): 135456112

約数和(自身を除く): 63465337

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 73, 75, 81, 135, 219, 225, 365, 405, 487, 657, 675, 1095, 1461, 1825, 1971, 2025, 2435, 3285, 4383, 5475, 5913, 7305, 9855, 12175, 13149, 16425, 21915, 29565, 35551, 36525, 39447, 49275, 65745, 106653, 109575, 147825, 177755, 197235, 319959, 328725, 533265, 888775, 959877, 986175, 1599795, 2666325, 2879631, 4799385, 7998975, 14398155, 23996925, 71990775]

約数ペア:

[(1, 71990775), (3, 23996925), (5, 14398155), (9, 7998975), (15, 4799385), (25, 2879631), (27, 2666325), (45, 1599795), (73, 986175), (75, 959877), (81, 888775), (135, 533265), (219, 328725), (225, 319959), (365, 197235), (405, 177755), (487, 147825), (657, 109575), (675, 106653), (1095, 65745), (1461, 49275), (1825, 39447), (1971, 36525), (2025, 35551), (2435, 29565), (3285, 21915), (4383, 16425), (5475, 13149), (5913, 12175), (7305, 9855)]