56989880

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{6389}}^1$

素因数の和:6623

約数の個数: 32

約数和(自身を含む): 128822400

約数和(自身を除く): 71832520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 6389, 8920, 12778, 25556, 31945, 51112, 63890, 127780, 255560, 1424747, 2849494, 5698988, 7123735, 11397976, 14247470, 28494940, 56989880]

約数ペア:

[(1, 56989880), (2, 28494940), (4, 14247470), (5, 11397976), (8, 7123735), (10, 5698988), (20, 2849494), (40, 1424747), (223, 255560), (446, 127780), (892, 63890), (1115, 51112), (1784, 31945), (2230, 25556), (4460, 12778), (6389, 8920)]