221465380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{1087}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 475969536

約数和(自身を除く): 254504156

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 167, 244, 305, 334, 610, 668, 835, 1087, 1220, 1670, 2174, 3340, 4348, 5435, 10187, 10870, 20374, 21740, 40748, 50935, 66307, 101870, 132614, 181529, 203740, 265228, 331535, 363058, 663070, 726116, 907645, 1326140, 1815290, 3630580, 11073269, 22146538, 44293076, 55366345, 110732690, 221465380]

約数ペア:

[(1, 221465380), (2, 110732690), (4, 55366345), (5, 44293076), (10, 22146538), (20, 11073269), (61, 3630580), (122, 1815290), (167, 1326140), (244, 907645), (305, 726116), (334, 663070), (610, 363058), (668, 331535), (835, 265228), (1087, 203740), (1220, 181529), (1670, 132614), (2174, 101870), (3340, 66307), (4348, 50935), (5435, 40748), (10187, 21740), (10870, 20374)]