20173212920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4987}}^1\times {\mathrm{14447}}^1$

素因数の和:19452

約数の個数: 64

約数和(自身を含む): 51887969280

約数和(自身を除く): 31714756360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4987, 9974, 14447, 19948, 24935, 28894, 34909, 39896, 49870, 57788, 69818, 72235, 99740, 101129, 115576, 139636, 144470, 174545, 199480, 202258, 279272, 288940, 349090, 404516, 505645, 577880, 698180, 809032, 1011290, 1396360, 2022580, 4045160, 72047189, 144094378, 288188756, 360235945, 504330323, 576377512, 720471890, 1008660646, 1440943780, 2017321292, 2521651615, 2881887560, 4034642584, 5043303230, 10086606460, 20173212920]

約数ペア:

[(1, 20173212920), (2, 10086606460), (4, 5043303230), (5, 4034642584), (7, 2881887560), (8, 2521651615), (10, 2017321292), (14, 1440943780), (20, 1008660646), (28, 720471890), (35, 576377512), (40, 504330323), (56, 360235945), (70, 288188756), (140, 144094378), (280, 72047189), (4987, 4045160), (9974, 2022580), (14447, 1396360), (19948, 1011290), (24935, 809032), (28894, 698180), (34909, 577880), (39896, 505645), (49870, 404516), (57788, 349090), (69818, 288940), (72235, 279272), (99740, 202258), (101129, 199480), (115576, 174545), (139636, 144470)]