690520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 1584720

約数和(自身を除く): 894200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 283, 305, 488, 566, 610, 1132, 1220, 1415, 2264, 2440, 2830, 5660, 11320, 17263, 34526, 69052, 86315, 138104, 172630, 345260, 690520]

約数ペア:

[(1, 690520), (2, 345260), (4, 172630), (5, 138104), (8, 86315), (10, 69052), (20, 34526), (40, 17263), (61, 11320), (122, 5660), (244, 2830), (283, 2440), (305, 2264), (488, 1415), (566, 1220), (610, 1132)]