61871560

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{2777}}^1$

素因数の和:3345

約数の個数: 32

約数和(自身を含む): 139511160

約数和(自身を除く): 77639600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2777, 2785, 4456, 5554, 5570, 11108, 11140, 13885, 22216, 22280, 27770, 55540, 111080, 1546789, 3093578, 6187156, 7733945, 12374312, 15467890, 30935780, 61871560]

約数ペア:

[(1, 61871560), (2, 30935780), (4, 15467890), (5, 12374312), (8, 7733945), (10, 6187156), (20, 3093578), (40, 1546789), (557, 111080), (1114, 55540), (2228, 27770), (2777, 22280), (2785, 22216), (4456, 13885), (5554, 11140), (5570, 11108)]