81639108

素因数分解:

$2^2\times 3^2\times {\mathrm{101}}^1\times {\mathrm{22453}}^1$

素因数の和:22564

約数の個数: 36

約数和(自身を含む): 208418028

約数和(自身を除く): 126778920

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 101, 202, 303, 404, 606, 909, 1212, 1818, 3636, 22453, 44906, 67359, 89812, 134718, 202077, 269436, 404154, 808308, 2267753, 4535506, 6803259, 9071012, 13606518, 20409777, 27213036, 40819554, 81639108]

約数ペア:

[(1, 81639108), (2, 40819554), (3, 27213036), (4, 20409777), (6, 13606518), (9, 9071012), (12, 6803259), (18, 4535506), (36, 2267753), (101, 808308), (202, 404154), (303, 269436), (404, 202077), (606, 134718), (909, 89812), (1212, 67359), (1818, 44906), (3636, 22453)]