20117955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 18492477

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 83, 113, 143, 165, 195, 249, 339, 415, 429, 565, 715, 913, 1079, 1243, 1245, 1469, 1695, 2145, 2739, 3237, 3729, 4407, 4565, 5395, 6215, 7345, 9379, 11869, 13695, 16159, 16185, 18645, 22035, 28137, 35607, 46895, 48477, 59345, 80795, 103169, 121927, 140685, 178035, 242385, 309507, 365781, 515845, 609635, 1341197, 1547535, 1828905, 4023591, 6705985, 20117955]

約数ペア:

[(1, 20117955), (3, 6705985), (5, 4023591), (11, 1828905), (13, 1547535), (15, 1341197), (33, 609635), (39, 515845), (55, 365781), (65, 309507), (83, 242385), (113, 178035), (143, 140685), (165, 121927), (195, 103169), (249, 80795), (339, 59345), (415, 48477), (429, 46895), (565, 35607), (715, 28137), (913, 22035), (1079, 18645), (1243, 16185), (1245, 16159), (1469, 13695), (1695, 11869), (2145, 9379), (2739, 7345), (3237, 6215), (3729, 5395), (4407, 4565)]