129674840

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{7487}}^1$

素因数の和:7931

約数の個数: 32

約数和(自身を含む): 292481280

約数和(自身を除く): 162806440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1732, 2165, 3464, 4330, 7487, 8660, 14974, 17320, 29948, 37435, 59896, 74870, 149740, 299480, 3241871, 6483742, 12967484, 16209355, 25934968, 32418710, 64837420, 129674840]

約数ペア:

[(1, 129674840), (2, 64837420), (4, 32418710), (5, 25934968), (8, 16209355), (10, 12967484), (20, 6483742), (40, 3241871), (433, 299480), (866, 149740), (1732, 74870), (2165, 59896), (3464, 37435), (4330, 29948), (7487, 17320), (8660, 14974)]