823646540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1\times {\mathrm{1567}}^1$

素因数の和:2258

約数の個数: 48

約数和(自身を含む): 1775741184

約数和(自身を除く): 952094644

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 641, 820, 1282, 1567, 2564, 3134, 3205, 6268, 6410, 7835, 12820, 15670, 26281, 31340, 52562, 64247, 105124, 128494, 131405, 256988, 262810, 321235, 525620, 642470, 1004447, 1284940, 2008894, 4017788, 5022235, 10044470, 20088940, 41182327, 82364654, 164729308, 205911635, 411823270, 823646540]

約数ペア:

[(1, 823646540), (2, 411823270), (4, 205911635), (5, 164729308), (10, 82364654), (20, 41182327), (41, 20088940), (82, 10044470), (164, 5022235), (205, 4017788), (410, 2008894), (641, 1284940), (820, 1004447), (1282, 642470), (1567, 525620), (2564, 321235), (3134, 262810), (3205, 256988), (6268, 131405), (6410, 128494), (7835, 105124), (12820, 64247), (15670, 52562), (26281, 31340)]