20770515

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1429}}^1$

素因数の和:1476

約数の個数: 48

約数和(自身を含む): 40154400

約数和(自身を除く): 19383885

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1429, 1615, 2907, 4287, 4845, 7145, 12861, 14535, 21435, 24293, 27151, 64305, 72879, 81453, 121465, 135755, 218637, 244359, 364395, 407265, 461567, 1093185, 1221795, 1384701, 2307835, 4154103, 6923505, 20770515]

約数ペア:

[(1, 20770515), (3, 6923505), (5, 4154103), (9, 2307835), (15, 1384701), (17, 1221795), (19, 1093185), (45, 461567), (51, 407265), (57, 364395), (85, 244359), (95, 218637), (153, 135755), (171, 121465), (255, 81453), (285, 72879), (323, 64305), (765, 27151), (855, 24293), (969, 21435), (1429, 14535), (1615, 12861), (2907, 7145), (4287, 4845)]