20334975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 36560160

約数和(自身を除く): 16225185

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 123, 205, 255, 389, 425, 615, 697, 1025, 1167, 1275, 1945, 2091, 3075, 3485, 5835, 6613, 9725, 10455, 15949, 17425, 19839, 29175, 33065, 47847, 52275, 79745, 99195, 165325, 239235, 271133, 398725, 495975, 813399, 1196175, 1355665, 4066995, 6778325, 20334975]

約数ペア:

[(1, 20334975), (3, 6778325), (5, 4066995), (15, 1355665), (17, 1196175), (25, 813399), (41, 495975), (51, 398725), (75, 271133), (85, 239235), (123, 165325), (205, 99195), (255, 79745), (389, 52275), (425, 47847), (615, 33065), (697, 29175), (1025, 19839), (1167, 17425), (1275, 15949), (1945, 10455), (2091, 9725), (3075, 6613), (3485, 5835)]