31145855

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 13125505

約数列:

[1, 5, 13, 29, 31, 41, 65, 145, 155, 169, 205, 377, 403, 533, 845, 899, 1189, 1271, 1885, 2015, 2665, 4495, 4901, 5239, 5945, 6355, 6929, 11687, 15457, 16523, 24505, 26195, 34645, 36859, 58435, 77285, 82615, 151931, 184295, 200941, 214799, 479167, 759655, 1004705, 1073995, 2395835, 6229171, 31145855]

約数ペア:

[(1, 31145855), (5, 6229171), (13, 2395835), (29, 1073995), (31, 1004705), (41, 759655), (65, 479167), (145, 214799), (155, 200941), (169, 184295), (205, 151931), (377, 82615), (403, 77285), (533, 58435), (845, 36859), (899, 34645), (1189, 26195), (1271, 24505), (1885, 16523), (2015, 15457), (2665, 11687), (4495, 6929), (4901, 6355), (5239, 5945)]