2161125

素因数分解:

$3^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 4161456

約数和(自身を除く): 2000331

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 113, 125, 153, 225, 255, 339, 375, 425, 565, 765, 1017, 1125, 1275, 1695, 1921, 2125, 2825, 3825, 5085, 5763, 6375, 8475, 9605, 14125, 17289, 19125, 25425, 28815, 42375, 48025, 86445, 127125, 144075, 240125, 432225, 720375, 2161125]

約数ペア:

[(1, 2161125), (3, 720375), (5, 432225), (9, 240125), (15, 144075), (17, 127125), (25, 86445), (45, 48025), (51, 42375), (75, 28815), (85, 25425), (113, 19125), (125, 17289), (153, 14125), (225, 9605), (255, 8475), (339, 6375), (375, 5763), (425, 5085), (565, 3825), (765, 2825), (1017, 2125), (1125, 1921), (1275, 1695)]