28887675

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 51246720

約数和(自身を除く): 22359045

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 139, 163, 255, 417, 425, 489, 695, 815, 1275, 2085, 2363, 2445, 2771, 3475, 4075, 7089, 8313, 10425, 11815, 12225, 13855, 22657, 35445, 41565, 59075, 67971, 69275, 113285, 177225, 207825, 339855, 385169, 566425, 1155507, 1699275, 1925845, 5777535, 9629225, 28887675]

約数ペア:

[(1, 28887675), (3, 9629225), (5, 5777535), (15, 1925845), (17, 1699275), (25, 1155507), (51, 566425), (75, 385169), (85, 339855), (139, 207825), (163, 177225), (255, 113285), (417, 69275), (425, 67971), (489, 59075), (695, 41565), (815, 35445), (1275, 22657), (2085, 13855), (2363, 12225), (2445, 11815), (2771, 10425), (3475, 8313), (4075, 7089)]