207839380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{212081}}^1$

素因数の和:212104

約数の個数: 36

約数和(自身を含む): 507724308

約数和(自身を除く): 299884928

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 212081, 424162, 848324, 1060405, 1484567, 2120810, 2969134, 4241620, 5938268, 7422835, 10391969, 14845670, 20783938, 29691340, 41567876, 51959845, 103919690, 207839380]

約数ペア:

[(1, 207839380), (2, 103919690), (4, 51959845), (5, 41567876), (7, 29691340), (10, 20783938), (14, 14845670), (20, 10391969), (28, 7422835), (35, 5938268), (49, 4241620), (70, 2969134), (98, 2120810), (140, 1484567), (196, 1060405), (245, 848324), (490, 424162), (980, 212081)]