28257460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 75479040

約数和(自身を除く): 47221580

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 59, 70, 77, 110, 118, 140, 154, 220, 236, 295, 308, 311, 385, 413, 590, 622, 649, 770, 826, 1180, 1244, 1298, 1540, 1555, 1652, 2065, 2177, 2596, 3110, 3245, 3421, 4130, 4354, 4543, 6220, 6490, 6842, 8260, 8708, 9086, 10885, 12980, 13684, 17105, 18172, 18349, 21770, 22715, 23947, 34210, 36698, 43540, 45430, 47894, 68420, 73396, 90860, 91745, 95788, 119735, 128443, 183490, 201839, 239470, 256886, 366980, 403678, 478940, 513772, 642215, 807356, 1009195, 1284430, 1412873, 2018390, 2568860, 2825746, 4036780, 5651492, 7064365, 14128730, 28257460]

約数ペア:

[(1, 28257460), (2, 14128730), (4, 7064365), (5, 5651492), (7, 4036780), (10, 2825746), (11, 2568860), (14, 2018390), (20, 1412873), (22, 1284430), (28, 1009195), (35, 807356), (44, 642215), (55, 513772), (59, 478940), (70, 403678), (77, 366980), (110, 256886), (118, 239470), (140, 201839), (154, 183490), (220, 128443), (236, 119735), (295, 95788), (308, 91745), (311, 90860), (385, 73396), (413, 68420), (590, 47894), (622, 45430), (649, 43540), (770, 36698), (826, 34210), (1180, 23947), (1244, 22715), (1298, 21770), (1540, 18349), (1555, 18172), (1652, 17105), (2065, 13684), (2177, 12980), (2596, 10885), (3110, 9086), (3245, 8708), (3421, 8260), (4130, 6842), (4354, 6490), (4543, 6220)]