13995640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 32947200

約数和(自身を除く): 18951560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 103, 158, 172, 206, 215, 316, 344, 395, 412, 430, 515, 632, 790, 824, 860, 1030, 1580, 1720, 2060, 3160, 3397, 4120, 4429, 6794, 8137, 8858, 13588, 16274, 16985, 17716, 22145, 27176, 32548, 33970, 35432, 40685, 44290, 65096, 67940, 81370, 88580, 135880, 162740, 177160, 325480, 349891, 699782, 1399564, 1749455, 2799128, 3498910, 6997820, 13995640]

約数ペア:

[(1, 13995640), (2, 6997820), (4, 3498910), (5, 2799128), (8, 1749455), (10, 1399564), (20, 699782), (40, 349891), (43, 325480), (79, 177160), (86, 162740), (103, 135880), (158, 88580), (172, 81370), (206, 67940), (215, 65096), (316, 44290), (344, 40685), (395, 35432), (412, 33970), (430, 32548), (515, 27176), (632, 22145), (790, 17716), (824, 16985), (860, 16274), (1030, 13588), (1580, 8858), (1720, 8137), (2060, 6794), (3160, 4429), (3397, 4120)]