31423755

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 56699136

約数和(自身を除く): 25275381

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 103, 129, 165, 215, 309, 473, 515, 645, 1133, 1419, 1545, 1849, 2365, 3399, 4429, 5547, 5665, 7095, 9245, 13287, 16995, 20339, 22145, 27735, 48719, 61017, 66435, 101695, 146157, 190447, 243595, 305085, 571341, 730785, 952235, 2094917, 2856705, 6284751, 10474585, 31423755]

約数ペア:

[(1, 31423755), (3, 10474585), (5, 6284751), (11, 2856705), (15, 2094917), (33, 952235), (43, 730785), (55, 571341), (103, 305085), (129, 243595), (165, 190447), (215, 146157), (309, 101695), (473, 66435), (515, 61017), (645, 48719), (1133, 27735), (1419, 22145), (1545, 20339), (1849, 16995), (2365, 13287), (3399, 9245), (4429, 7095), (5547, 5665)]