80973975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 145303200

約数和(自身を除く): 64329225

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 75, 85, 123, 205, 255, 425, 615, 697, 1025, 1275, 1549, 2091, 3075, 3485, 4647, 7745, 10455, 17425, 23235, 26333, 38725, 52275, 63509, 78999, 116175, 131665, 190527, 317545, 394995, 658325, 952635, 1079653, 1587725, 1974975, 3238959, 4763175, 5398265, 16194795, 26991325, 80973975]

約数ペア:

[(1, 80973975), (3, 26991325), (5, 16194795), (15, 5398265), (17, 4763175), (25, 3238959), (41, 1974975), (51, 1587725), (75, 1079653), (85, 952635), (123, 658325), (205, 394995), (255, 317545), (425, 190527), (615, 131665), (697, 116175), (1025, 78999), (1275, 63509), (1549, 52275), (2091, 38725), (3075, 26333), (3485, 23235), (4647, 17425), (7745, 10455)]