81389040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339121}}^1$

素因数の和:339137

約数の個数: 40

約数和(自身を含む): 252306768

約数和(自身を除く): 170917728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339121, 678242, 1017363, 1356484, 1695605, 2034726, 2712968, 3391210, 4069452, 5086815, 5425936, 6782420, 8138904, 10173630, 13564840, 16277808, 20347260, 27129680, 40694520, 81389040]

約数ペア:

[(1, 81389040), (2, 40694520), (3, 27129680), (4, 20347260), (5, 16277808), (6, 13564840), (8, 10173630), (10, 8138904), (12, 6782420), (15, 5425936), (16, 5086815), (20, 4069452), (24, 3391210), (30, 2712968), (40, 2034726), (48, 1695605), (60, 1356484), (80, 1017363), (120, 678242), (240, 339121)]