28457880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21559}}^1$

素因数の和:21584

約数の個数: 64

約数和(自身を含む): 93139200

約数和(自身を除く): 64681320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 21559, 43118, 64677, 86236, 107795, 129354, 172472, 215590, 237149, 258708, 323385, 431180, 474298, 517416, 646770, 711447, 862360, 948596, 1185745, 1293540, 1422894, 1897192, 2371490, 2587080, 2845788, 3557235, 4742980, 5691576, 7114470, 9485960, 14228940, 28457880]

約数ペア:

[(1, 28457880), (2, 14228940), (3, 9485960), (4, 7114470), (5, 5691576), (6, 4742980), (8, 3557235), (10, 2845788), (11, 2587080), (12, 2371490), (15, 1897192), (20, 1422894), (22, 1293540), (24, 1185745), (30, 948596), (33, 862360), (40, 711447), (44, 646770), (55, 517416), (60, 474298), (66, 431180), (88, 323385), (110, 258708), (120, 237149), (132, 215590), (165, 172472), (220, 129354), (264, 107795), (330, 86236), (440, 64677), (660, 43118), (1320, 21559)]