2018868920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{839}}^1\times {\mathrm{1399}}^1$

素因数の和:2292

約数の個数: 64

約数和(自身を含む): 4656960000

約数和(自身を除く): 2638091080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 839, 860, 1399, 1678, 1720, 2798, 3356, 4195, 5596, 6712, 6995, 8390, 11192, 13990, 16780, 27980, 33560, 36077, 55960, 60157, 72154, 120314, 144308, 180385, 240628, 288616, 300785, 360770, 481256, 601570, 721540, 1173761, 1203140, 1443080, 2347522, 2406280, 4695044, 5868805, 9390088, 11737610, 23475220, 46950440, 50471723, 100943446, 201886892, 252358615, 403773784, 504717230, 1009434460, 2018868920]

約数ペア:

[(1, 2018868920), (2, 1009434460), (4, 504717230), (5, 403773784), (8, 252358615), (10, 201886892), (20, 100943446), (40, 50471723), (43, 46950440), (86, 23475220), (172, 11737610), (215, 9390088), (344, 5868805), (430, 4695044), (839, 2406280), (860, 2347522), (1399, 1443080), (1678, 1203140), (1720, 1173761), (2798, 721540), (3356, 601570), (4195, 481256), (5596, 360770), (6712, 300785), (6995, 288616), (8390, 240628), (11192, 180385), (13990, 144308), (16780, 120314), (27980, 72154), (33560, 60157), (36077, 55960)]