13806040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 33436800

約数和(自身を除く): 19630760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 79, 85, 136, 158, 170, 257, 316, 340, 395, 514, 632, 680, 790, 1028, 1285, 1343, 1580, 2056, 2570, 2686, 3160, 4369, 5140, 5372, 6715, 8738, 10280, 10744, 13430, 17476, 20303, 21845, 26860, 34952, 40606, 43690, 53720, 81212, 87380, 101515, 162424, 174760, 203030, 345151, 406060, 690302, 812120, 1380604, 1725755, 2761208, 3451510, 6903020, 13806040]

約数ペア:

[(1, 13806040), (2, 6903020), (4, 3451510), (5, 2761208), (8, 1725755), (10, 1380604), (17, 812120), (20, 690302), (34, 406060), (40, 345151), (68, 203030), (79, 174760), (85, 162424), (136, 101515), (158, 87380), (170, 81212), (257, 53720), (316, 43690), (340, 40606), (395, 34952), (514, 26860), (632, 21845), (680, 20303), (790, 17476), (1028, 13430), (1285, 10744), (1343, 10280), (1580, 8738), (2056, 6715), (2570, 5372), (2686, 5140), (3160, 4369)]