1264840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 2882880

約数和(自身を除く): 1618040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 307, 412, 515, 614, 824, 1030, 1228, 1535, 2060, 2456, 3070, 4120, 6140, 12280, 31621, 63242, 126484, 158105, 252968, 316210, 632420, 1264840]

約数ペア:

[(1, 1264840), (2, 632420), (4, 316210), (5, 252968), (8, 158105), (10, 126484), (20, 63242), (40, 31621), (103, 12280), (206, 6140), (307, 4120), (412, 3070), (515, 2456), (614, 2060), (824, 1535), (1030, 1228)]