28348905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 50279616

約数和(自身を除く): 21930711

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 169, 195, 211, 265, 507, 633, 689, 795, 845, 1055, 2067, 2535, 2743, 3165, 3445, 8229, 8957, 10335, 11183, 13715, 26871, 33549, 35659, 41145, 44785, 55915, 106977, 134355, 145379, 167745, 178295, 436137, 534885, 726895, 1889927, 2180685, 5669781, 9449635, 28348905]

約数ペア:

[(1, 28348905), (3, 9449635), (5, 5669781), (13, 2180685), (15, 1889927), (39, 726895), (53, 534885), (65, 436137), (159, 178295), (169, 167745), (195, 145379), (211, 134355), (265, 106977), (507, 55915), (633, 44785), (689, 41145), (795, 35659), (845, 33549), (1055, 26871), (2067, 13715), (2535, 11183), (2743, 10335), (3165, 8957), (3445, 8229)]