66840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{557}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 200880

約数和(自身を除く): 134040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 557, 1114, 1671, 2228, 2785, 3342, 4456, 5570, 6684, 8355, 11140, 13368, 16710, 22280, 33420, 66840]

約数ペア:

[(1, 66840), (2, 33420), (3, 22280), (4, 16710), (5, 13368), (6, 11140), (8, 8355), (10, 6684), (12, 5570), (15, 4456), (20, 3342), (24, 2785), (30, 2228), (40, 1671), (60, 1114), (120, 557)]