20153877961

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1\times {\mathrm{811}}^1$

素因数の和:1262

約数の個数: 64

約数和(自身を含む): 26659584000

約数和(自身を除く): 6505706039

約数列:

[1, 7, 17, 19, 29, 119, 133, 203, 323, 379, 493, 551, 811, 2261, 2653, 3451, 3857, 5677, 6443, 7201, 9367, 10991, 13787, 15409, 23519, 45101, 50407, 65569, 76937, 96509, 107863, 122417, 164633, 186847, 208829, 261953, 307369, 399823, 446861, 856919, 1307929, 1461803, 1833671, 2151583, 2798761, 3128027, 3550093, 5225273, 5840011, 7596637, 8913701, 24850651, 36576911, 40880077, 53176459, 62395907, 99280187, 151532917, 169360319, 694961309, 1060730419, 1185522233, 2879125423, 20153877961]

約数ペア:

[(1, 20153877961), (7, 2879125423), (17, 1185522233), (19, 1060730419), (29, 694961309), (119, 169360319), (133, 151532917), (203, 99280187), (323, 62395907), (379, 53176459), (493, 40880077), (551, 36576911), (811, 24850651), (2261, 8913701), (2653, 7596637), (3451, 5840011), (3857, 5225273), (5677, 3550093), (6443, 3128027), (7201, 2798761), (9367, 2151583), (10991, 1833671), (13787, 1461803), (15409, 1307929), (23519, 856919), (45101, 446861), (50407, 399823), (65569, 307369), (76937, 261953), (96509, 208829), (107863, 186847), (122417, 164633)]