2255475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 4151520

約数和(自身を除く): 1896045

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 61, 75, 85, 87, 145, 183, 255, 305, 425, 435, 493, 725, 915, 1037, 1275, 1479, 1525, 1769, 2175, 2465, 3111, 4575, 5185, 5307, 7395, 8845, 12325, 15555, 25925, 26535, 30073, 36975, 44225, 77775, 90219, 132675, 150365, 451095, 751825, 2255475]

約数ペア:

[(1, 2255475), (3, 751825), (5, 451095), (15, 150365), (17, 132675), (25, 90219), (29, 77775), (51, 44225), (61, 36975), (75, 30073), (85, 26535), (87, 25925), (145, 15555), (183, 12325), (255, 8845), (305, 7395), (425, 5307), (435, 5185), (493, 4575), (725, 3111), (915, 2465), (1037, 2175), (1275, 1769), (1479, 1525)]