3920625

素因数分解:

$3^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:84

約数の個数: 60

約数和(自身を含む): 7675668

約数和(自身を除く): 3755043

約数列:

[1, 3, 5, 9, 15, 17, 25, 41, 45, 51, 75, 85, 123, 125, 153, 205, 225, 255, 369, 375, 425, 615, 625, 697, 765, 1025, 1125, 1275, 1845, 1875, 2091, 2125, 3075, 3485, 3825, 5125, 5625, 6273, 6375, 9225, 10455, 10625, 15375, 17425, 19125, 25625, 31365, 31875, 46125, 52275, 76875, 87125, 95625, 156825, 230625, 261375, 435625, 784125, 1306875, 3920625]

約数ペア:

[(1, 3920625), (3, 1306875), (5, 784125), (9, 435625), (15, 261375), (17, 230625), (25, 156825), (41, 95625), (45, 87125), (51, 76875), (75, 52275), (85, 46125), (123, 31875), (125, 31365), (153, 25625), (205, 19125), (225, 17425), (255, 15375), (369, 10625), (375, 10455), (425, 9225), (615, 6375), (625, 6273), (697, 5625), (765, 5125), (1025, 3825), (1125, 3485), (1275, 3075), (1845, 2125), (1875, 2091)]