66944120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{38921}}^1$

素因数の和:38975

約数の個数: 32

約数和(自身を含む): 154131120

約数和(自身を除く): 87187000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 38921, 77842, 155684, 194605, 311368, 389210, 778420, 1556840, 1673603, 3347206, 6694412, 8368015, 13388824, 16736030, 33472060, 66944120]

約数ペア:

[(1, 66944120), (2, 33472060), (4, 16736030), (5, 13388824), (8, 8368015), (10, 6694412), (20, 3347206), (40, 1673603), (43, 1556840), (86, 778420), (172, 389210), (215, 311368), (344, 194605), (430, 155684), (860, 77842), (1720, 38921)]