257199780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4286663}}^1$

素因数の和:4286675

約数の個数: 24

約数和(自身を含む): 720159552

約数和(自身を除く): 462959772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4286663, 8573326, 12859989, 17146652, 21433315, 25719978, 42866630, 51439956, 64299945, 85733260, 128599890, 257199780]

約数ペア:

[(1, 257199780), (2, 128599890), (3, 85733260), (4, 64299945), (5, 51439956), (6, 42866630), (10, 25719978), (12, 21433315), (15, 17146652), (20, 12859989), (30, 8573326), (60, 4286663)]