4285720

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 9702000

約数和(自身を除く): 5416280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 349, 614, 698, 1228, 1396, 1535, 1745, 2456, 2792, 3070, 3490, 6140, 6980, 12280, 13960, 107143, 214286, 428572, 535715, 857144, 1071430, 2142860, 4285720]

約数ペア:

[(1, 4285720), (2, 2142860), (4, 1071430), (5, 857144), (8, 535715), (10, 428572), (20, 214286), (40, 107143), (307, 13960), (349, 12280), (614, 6980), (698, 6140), (1228, 3490), (1396, 3070), (1535, 2792), (1745, 2456)]