28128555

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6869}}^1$

素因数の和:6900

約数の個数: 48

約数和(自身を含む): 60016320

約数和(自身を除く): 31887765

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 6869, 20607, 34345, 48083, 61821, 89297, 103035, 144249, 240415, 267891, 309105, 432747, 446485, 625079, 721245, 803673, 1339455, 1875237, 2163735, 3125395, 4018365, 5625711, 9376185, 28128555]

約数ペア:

[(1, 28128555), (3, 9376185), (5, 5625711), (7, 4018365), (9, 3125395), (13, 2163735), (15, 1875237), (21, 1339455), (35, 803673), (39, 721245), (45, 625079), (63, 446485), (65, 432747), (91, 309105), (105, 267891), (117, 240415), (195, 144249), (273, 103035), (315, 89297), (455, 61821), (585, 48083), (819, 34345), (1365, 20607), (4095, 6869)]