81750008

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1861}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 171490200

約数和(自身を除く): 89740192

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 289, 323, 578, 646, 1156, 1292, 1861, 2312, 2584, 3722, 5491, 7444, 10982, 14888, 21964, 31637, 35359, 43928, 63274, 70718, 126548, 141436, 253096, 282872, 537829, 601103, 1075658, 1202206, 2151316, 2404412, 4302632, 4808824, 10218751, 20437502, 40875004, 81750008]

約数ペア:

[(1, 81750008), (2, 40875004), (4, 20437502), (8, 10218751), (17, 4808824), (19, 4302632), (34, 2404412), (38, 2151316), (68, 1202206), (76, 1075658), (136, 601103), (152, 537829), (289, 282872), (323, 253096), (578, 141436), (646, 126548), (1156, 70718), (1292, 63274), (1861, 43928), (2312, 35359), (2584, 31637), (3722, 21964), (5491, 14888), (7444, 10982)]