20404711365

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1\times {\mathrm{769}}^1$

素因数の和:1502

約数の個数: 64

約数和(自身を含む): 33987824640

約数和(自身を除く): 13583113275

約数列:

[1, 3, 5, 15, 47, 61, 141, 183, 235, 305, 617, 705, 769, 915, 1851, 2307, 2867, 3085, 3845, 8601, 9255, 11535, 14335, 28999, 36143, 37637, 43005, 46909, 86997, 108429, 112911, 140727, 144995, 180715, 188185, 234545, 434985, 474473, 542145, 564555, 703635, 1423419, 1768939, 2204723, 2372365, 5306817, 6614169, 7117095, 8844695, 11023615, 22300231, 26534085, 28942853, 33070845, 66900693, 86828559, 111501155, 144714265, 334503465, 434142795, 1360314091, 4080942273, 6801570455, 20404711365]

約数ペア:

[(1, 20404711365), (3, 6801570455), (5, 4080942273), (15, 1360314091), (47, 434142795), (61, 334503465), (141, 144714265), (183, 111501155), (235, 86828559), (305, 66900693), (617, 33070845), (705, 28942853), (769, 26534085), (915, 22300231), (1851, 11023615), (2307, 8844695), (2867, 7117095), (3085, 6614169), (3845, 5306817), (8601, 2372365), (9255, 2204723), (11535, 1768939), (14335, 1423419), (28999, 703635), (36143, 564555), (37637, 542145), (43005, 474473), (46909, 434985), (86997, 234545), (108429, 188185), (112911, 180715), (140727, 144995)]