28890135

素因数分解:

$3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1237}}^1$

素因数の和:1424

約数の個数: 32

約数和(自身を含む): 51698880

約数和(自身を除く): 22808745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 173, 519, 865, 1237, 1557, 2595, 3711, 4671, 6185, 7785, 11133, 18555, 23355, 33399, 55665, 166995, 214001, 642003, 1070005, 1926009, 3210015, 5778027, 9630045, 28890135]

約数ペア:

[(1, 28890135), (3, 9630045), (5, 5778027), (9, 3210015), (15, 1926009), (27, 1070005), (45, 642003), (135, 214001), (173, 166995), (519, 55665), (865, 33399), (1237, 23355), (1557, 18555), (2595, 11133), (3711, 7785), (4671, 6185)]