81180164

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 164634120

約数和(自身を除く): 83453956

約数列:

[1, 2, 4, 13, 26, 29, 41, 52, 58, 82, 101, 116, 164, 169, 202, 338, 377, 404, 533, 676, 754, 1066, 1189, 1313, 1508, 2132, 2378, 2626, 2929, 4141, 4756, 4901, 5252, 5858, 6929, 8282, 9802, 11716, 13858, 15457, 16564, 17069, 19604, 27716, 30914, 34138, 38077, 53833, 61828, 68276, 76154, 107666, 120089, 152308, 200941, 215332, 240178, 401882, 480356, 495001, 699829, 803764, 990002, 1399658, 1561157, 1980004, 2799316, 3122314, 6244628, 20295041, 40590082, 81180164]

約数ペア:

[(1, 81180164), (2, 40590082), (4, 20295041), (13, 6244628), (26, 3122314), (29, 2799316), (41, 1980004), (52, 1561157), (58, 1399658), (82, 990002), (101, 803764), (116, 699829), (164, 495001), (169, 480356), (202, 401882), (338, 240178), (377, 215332), (404, 200941), (533, 152308), (676, 120089), (754, 107666), (1066, 76154), (1189, 68276), (1313, 61828), (1508, 53833), (2132, 38077), (2378, 34138), (2626, 30914), (2929, 27716), (4141, 19604), (4756, 17069), (4901, 16564), (5252, 15457), (5858, 13858), (6929, 11716), (8282, 9802)]