81133780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44579}}^1$

素因数の和:44608

約数の個数: 48

約数和(自身を含む): 209704320

約数和(自身を除く): 128570540

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44579, 89158, 178316, 222895, 312053, 445790, 579527, 624106, 891580, 1159054, 1248212, 1560265, 2318108, 2897635, 3120530, 4056689, 5795270, 6241060, 8113378, 11590540, 16226756, 20283445, 40566890, 81133780]

約数ペア:

[(1, 81133780), (2, 40566890), (4, 20283445), (5, 16226756), (7, 11590540), (10, 8113378), (13, 6241060), (14, 5795270), (20, 4056689), (26, 3120530), (28, 2897635), (35, 2318108), (52, 1560265), (65, 1248212), (70, 1159054), (91, 891580), (130, 624106), (140, 579527), (182, 445790), (260, 312053), (364, 222895), (455, 178316), (910, 89158), (1820, 44579)]