28374225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 51734784

約数和(自身を除く): 23360559

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 163, 165, 211, 275, 489, 633, 815, 825, 1055, 1793, 2321, 2445, 3165, 4075, 5275, 5379, 6963, 8965, 11605, 12225, 15825, 26895, 34393, 34815, 44825, 58025, 103179, 134475, 171965, 174075, 378323, 515895, 859825, 1134969, 1891615, 2579475, 5674845, 9458075, 28374225]

約数ペア:

[(1, 28374225), (3, 9458075), (5, 5674845), (11, 2579475), (15, 1891615), (25, 1134969), (33, 859825), (55, 515895), (75, 378323), (163, 174075), (165, 171965), (211, 134475), (275, 103179), (489, 58025), (633, 44825), (815, 34815), (825, 34393), (1055, 26895), (1793, 15825), (2321, 12225), (2445, 11605), (3165, 8965), (4075, 6963), (5275, 5379)]