205251340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{3499}}^1$

素因数の和:3934

約数の個数: 48

約数和(自身を含む): 493920000

約数和(自身を除く): 288668660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 419, 838, 1676, 2095, 2933, 3499, 4190, 5866, 6998, 8380, 11732, 13996, 14665, 17495, 24493, 29330, 34990, 48986, 58660, 69980, 97972, 122465, 244930, 489860, 1466081, 2932162, 5864324, 7330405, 10262567, 14660810, 20525134, 29321620, 41050268, 51312835, 102625670, 205251340]

約数ペア:

[(1, 205251340), (2, 102625670), (4, 51312835), (5, 41050268), (7, 29321620), (10, 20525134), (14, 14660810), (20, 10262567), (28, 7330405), (35, 5864324), (70, 2932162), (140, 1466081), (419, 489860), (838, 244930), (1676, 122465), (2095, 97972), (2933, 69980), (3499, 58660), (4190, 48986), (5866, 34990), (6998, 29330), (8380, 24493), (11732, 17495), (13996, 14665)]