2019921280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{242779}}^1$

素因数の和:242811

約数の個数: 64

約数和(自身を含む): 5200347600

約数和(自身を除く): 3180426320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 242779, 485558, 971116, 1213895, 1942232, 2427790, 3156127, 3884464, 4855580, 6312254, 7768928, 9711160, 12624508, 15537856, 15780635, 19422320, 25249016, 31075712, 31561270, 38844640, 50498032, 63122540, 77689280, 100996064, 126245080, 155378560, 201992128, 252490160, 403984256, 504980320, 1009960640, 2019921280]

約数ペア:

[(1, 2019921280), (2, 1009960640), (4, 504980320), (5, 403984256), (8, 252490160), (10, 201992128), (13, 155378560), (16, 126245080), (20, 100996064), (26, 77689280), (32, 63122540), (40, 50498032), (52, 38844640), (64, 31561270), (65, 31075712), (80, 25249016), (104, 19422320), (128, 15780635), (130, 15537856), (160, 12624508), (208, 9711160), (260, 7768928), (320, 6312254), (416, 4855580), (520, 3884464), (640, 3156127), (832, 2427790), (1040, 1942232), (1664, 1213895), (2080, 971116), (4160, 485558), (8320, 242779)]