20523230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1233

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27376930

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1187, 1235, 1330, 1729, 2374, 2470, 3458, 5935, 8309, 8645, 11870, 15431, 16618, 17290, 22553, 30862, 41545, 45106, 77155, 83090, 108017, 112765, 154310, 157871, 216034, 225530, 293189, 315742, 540085, 586378, 789355, 1080170, 1465945, 1578710, 2052323, 2931890, 4104646, 10261615, 20523230]

約数ペア:

[(1, 20523230), (2, 10261615), (5, 4104646), (7, 2931890), (10, 2052323), (13, 1578710), (14, 1465945), (19, 1080170), (26, 789355), (35, 586378), (38, 540085), (65, 315742), (70, 293189), (91, 225530), (95, 216034), (130, 157871), (133, 154310), (182, 112765), (190, 108017), (247, 83090), (266, 77155), (455, 45106), (494, 41545), (665, 30862), (910, 22553), (1187, 17290), (1235, 16618), (1330, 15431), (1729, 11870), (2374, 8645), (2470, 8309), (3458, 5935)]