1315708420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{10391}}^1$

素因数の和:10900

約数の個数: 48

約数和(自身を含む): 2981922048

約数和(自身を除く): 1666213628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 487, 974, 1948, 2435, 4870, 6331, 9740, 10391, 12662, 20782, 25324, 31655, 41564, 51955, 63310, 103910, 126620, 135083, 207820, 270166, 540332, 675415, 1350830, 2701660, 5060417, 10120834, 20241668, 25302085, 50604170, 65785421, 101208340, 131570842, 263141684, 328927105, 657854210, 1315708420]

約数ペア:

[(1, 1315708420), (2, 657854210), (4, 328927105), (5, 263141684), (10, 131570842), (13, 101208340), (20, 65785421), (26, 50604170), (52, 25302085), (65, 20241668), (130, 10120834), (260, 5060417), (487, 2701660), (974, 1350830), (1948, 675415), (2435, 540332), (4870, 270166), (6331, 207820), (9740, 135083), (10391, 126620), (12662, 103910), (20782, 63310), (25324, 51955), (31655, 41564)]