2568520

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 5830200

約数和(自身を除く): 3261680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 409, 628, 785, 818, 1256, 1570, 1636, 2045, 3140, 3272, 4090, 6280, 8180, 16360, 64213, 128426, 256852, 321065, 513704, 642130, 1284260, 2568520]

約数ペア:

[(1, 2568520), (2, 1284260), (4, 642130), (5, 513704), (8, 321065), (10, 256852), (20, 128426), (40, 64213), (157, 16360), (314, 8180), (409, 6280), (628, 4090), (785, 3272), (818, 3140), (1256, 2045), (1570, 1636)]