20003475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 36292320

約数和(自身を除く): 16288845

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 541, 725, 1275, 1479, 1623, 2175, 2465, 2705, 7395, 8115, 9197, 12325, 13525, 15689, 27591, 36975, 40575, 45985, 47067, 78445, 137955, 229925, 235335, 266713, 392225, 689775, 800139, 1176675, 1333565, 4000695, 6667825, 20003475]

約数ペア:

[(1, 20003475), (3, 6667825), (5, 4000695), (15, 1333565), (17, 1176675), (25, 800139), (29, 689775), (51, 392225), (75, 266713), (85, 235335), (87, 229925), (145, 137955), (255, 78445), (425, 47067), (435, 45985), (493, 40575), (541, 36975), (725, 27591), (1275, 15689), (1479, 13525), (1623, 12325), (2175, 9197), (2465, 8115), (2705, 7395)]