20920770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17881}}^1$

素因数の和:17907

約数の個数: 48

約数和(自身を含む): 58581432

約数和(自身を除く): 37660662

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17881, 35762, 53643, 89405, 107286, 160929, 178810, 232453, 268215, 321858, 464906, 536430, 697359, 804645, 1162265, 1394718, 1609290, 2092077, 2324530, 3486795, 4184154, 6973590, 10460385, 20920770]

約数ペア:

[(1, 20920770), (2, 10460385), (3, 6973590), (5, 4184154), (6, 3486795), (9, 2324530), (10, 2092077), (13, 1609290), (15, 1394718), (18, 1162265), (26, 804645), (30, 697359), (39, 536430), (45, 464906), (65, 321858), (78, 268215), (90, 232453), (117, 178810), (130, 160929), (195, 107286), (234, 89405), (390, 53643), (585, 35762), (1170, 17881)]