1663340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^2$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 4028976

約数和(自身を除く): 2365636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 11881, 15260, 23762, 47524, 59405, 83167, 118810, 166334, 237620, 332668, 415835, 831670, 1663340]

約数ペア:

[(1, 1663340), (2, 831670), (4, 415835), (5, 332668), (7, 237620), (10, 166334), (14, 118810), (20, 83167), (28, 59405), (35, 47524), (70, 23762), (109, 15260), (140, 11881), (218, 7630), (436, 3815), (545, 3052), (763, 2180), (1090, 1526)]