28742325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22543}}^1$

素因数の和:22573

約数の個数: 24

約数和(自身を含む): 50318208

約数和(自身を除く): 21575883

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22543, 67629, 112715, 338145, 383231, 563575, 1149693, 1690725, 1916155, 5748465, 9580775, 28742325]

約数ペア:

[(1, 28742325), (3, 9580775), (5, 5748465), (15, 1916155), (17, 1690725), (25, 1149693), (51, 563575), (75, 383231), (85, 338145), (255, 112715), (425, 67629), (1275, 22543)]