81378840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678157}}^1$

素因数の和:678171

約数の個数: 32

約数和(自身を含む): 244136880

約数和(自身を除く): 162758040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678157, 1356314, 2034471, 2712628, 3390785, 4068942, 5425256, 6781570, 8137884, 10172355, 13563140, 16275768, 20344710, 27126280, 40689420, 81378840]

約数ペア:

[(1, 81378840), (2, 40689420), (3, 27126280), (4, 20344710), (5, 16275768), (6, 13563140), (8, 10172355), (10, 8137884), (12, 6781570), (15, 5425256), (20, 4068942), (24, 3390785), (30, 2712628), (40, 2034471), (60, 1356314), (120, 678157)]