8638520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{677}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 21967200

約数和(自身を除く): 13328680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 677, 1160, 1276, 1354, 1595, 2552, 2708, 3190, 3385, 5416, 6380, 6770, 7447, 12760, 13540, 14894, 19633, 27080, 29788, 37235, 39266, 59576, 74470, 78532, 98165, 148940, 157064, 196330, 215963, 297880, 392660, 431926, 785320, 863852, 1079815, 1727704, 2159630, 4319260, 8638520]

約数ペア:

[(1, 8638520), (2, 4319260), (4, 2159630), (5, 1727704), (8, 1079815), (10, 863852), (11, 785320), (20, 431926), (22, 392660), (29, 297880), (40, 215963), (44, 196330), (55, 157064), (58, 148940), (88, 98165), (110, 78532), (116, 74470), (145, 59576), (220, 39266), (232, 37235), (290, 29788), (319, 27080), (440, 19633), (580, 14894), (638, 13540), (677, 12760), (1160, 7447), (1276, 6770), (1354, 6380), (1595, 5416), (2552, 3385), (2708, 3190)]