28457990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:869

約数の個数: 48

約数和(自身を含む): 58317840

約数和(自身を除く): 29859850

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 121, 145, 242, 290, 319, 605, 638, 811, 1210, 1595, 1622, 3190, 3509, 4055, 7018, 8110, 8921, 17545, 17842, 23519, 35090, 44605, 47038, 89210, 98131, 117595, 196262, 235190, 258709, 490655, 517418, 981310, 1293545, 2587090, 2845799, 5691598, 14228995, 28457990]

約数ペア:

[(1, 28457990), (2, 14228995), (5, 5691598), (10, 2845799), (11, 2587090), (22, 1293545), (29, 981310), (55, 517418), (58, 490655), (110, 258709), (121, 235190), (145, 196262), (242, 117595), (290, 98131), (319, 89210), (605, 47038), (638, 44605), (811, 35090), (1210, 23519), (1595, 17842), (1622, 17545), (3190, 8921), (3509, 8110), (4055, 7018)]