28426412

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 58705920

約数和(自身を除く): 30279508

約数列:

[1, 2, 4, 7, 14, 28, 71, 79, 142, 158, 181, 284, 316, 362, 497, 553, 724, 994, 1106, 1267, 1988, 2212, 2534, 5068, 5609, 11218, 12851, 14299, 22436, 25702, 28598, 39263, 51404, 57196, 78526, 89957, 100093, 157052, 179914, 200186, 359828, 400372, 1015229, 2030458, 4060916, 7106603, 14213206, 28426412]

約数ペア:

[(1, 28426412), (2, 14213206), (4, 7106603), (7, 4060916), (14, 2030458), (28, 1015229), (71, 400372), (79, 359828), (142, 200186), (158, 179914), (181, 157052), (284, 100093), (316, 89957), (362, 78526), (497, 57196), (553, 51404), (724, 39263), (994, 28598), (1106, 25702), (1267, 22436), (1988, 14299), (2212, 12851), (2534, 11218), (5068, 5609)]