30905080

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{1613}}^1$

素因数の和:2103

約数の個数: 32

約数和(自身を含む): 69724800

約数和(自身を除く): 38819720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1613, 1916, 2395, 3226, 3832, 4790, 6452, 8065, 9580, 12904, 16130, 19160, 32260, 64520, 772627, 1545254, 3090508, 3863135, 6181016, 7726270, 15452540, 30905080]

約数ペア:

[(1, 30905080), (2, 15452540), (4, 7726270), (5, 6181016), (8, 3863135), (10, 3090508), (20, 1545254), (40, 772627), (479, 64520), (958, 32260), (1613, 19160), (1916, 16130), (2395, 12904), (3226, 9580), (3832, 8065), (4790, 6452)]