68392980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{929}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 208189800

約数和(自身を除く): 139796820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 409, 818, 929, 1227, 1636, 1858, 2045, 2454, 2787, 3681, 3716, 4090, 4645, 4908, 5574, 6135, 7362, 8180, 8361, 9290, 11148, 12270, 13935, 14724, 16722, 18405, 18580, 24540, 27870, 33444, 36810, 41805, 55740, 73620, 83610, 167220, 379961, 759922, 1139883, 1519844, 1899805, 2279766, 3419649, 3799610, 4559532, 5699415, 6839298, 7599220, 11398830, 13678596, 17098245, 22797660, 34196490, 68392980]

約数ペア:

[(1, 68392980), (2, 34196490), (3, 22797660), (4, 17098245), (5, 13678596), (6, 11398830), (9, 7599220), (10, 6839298), (12, 5699415), (15, 4559532), (18, 3799610), (20, 3419649), (30, 2279766), (36, 1899805), (45, 1519844), (60, 1139883), (90, 759922), (180, 379961), (409, 167220), (818, 83610), (929, 73620), (1227, 55740), (1636, 41805), (1858, 36810), (2045, 33444), (2454, 27870), (2787, 24540), (3681, 18580), (3716, 18405), (4090, 16722), (4645, 14724), (4908, 13935), (5574, 12270), (6135, 11148), (7362, 9290), (8180, 8361)]