28396225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{47}}^1$

素因数の和:107

約数の個数: 48

約数和(自身を含む): 42497280

約数和(自身を除く): 14101055

約数列:

[1, 5, 11, 13, 25, 47, 55, 65, 143, 169, 235, 275, 325, 517, 611, 715, 845, 1175, 1859, 2197, 2585, 3055, 3575, 4225, 6721, 7943, 9295, 10985, 12925, 15275, 24167, 33605, 39715, 46475, 54925, 87373, 103259, 120835, 168025, 198575, 436865, 516295, 604175, 1135849, 2184325, 2581475, 5679245, 28396225]

約数ペア:

[(1, 28396225), (5, 5679245), (11, 2581475), (13, 2184325), (25, 1135849), (47, 604175), (55, 516295), (65, 436865), (143, 198575), (169, 168025), (235, 120835), (275, 103259), (325, 87373), (517, 54925), (611, 46475), (715, 39715), (845, 33605), (1175, 24167), (1859, 15275), (2197, 12925), (2585, 10985), (3055, 9295), (3575, 7943), (4225, 6721)]