1296020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 3060288

約数和(自身を除く): 1764268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 137, 172, 215, 220, 274, 430, 473, 548, 685, 860, 946, 1370, 1507, 1892, 2365, 2740, 3014, 4730, 5891, 6028, 7535, 9460, 11782, 15070, 23564, 29455, 30140, 58910, 64801, 117820, 129602, 259204, 324005, 648010, 1296020]

約数ペア:

[(1, 1296020), (2, 648010), (4, 324005), (5, 259204), (10, 129602), (11, 117820), (20, 64801), (22, 58910), (43, 30140), (44, 29455), (55, 23564), (86, 15070), (110, 11782), (137, 9460), (172, 7535), (215, 6028), (220, 5891), (274, 4730), (430, 3014), (473, 2740), (548, 2365), (685, 1892), (860, 1507), (946, 1370)]