20131098440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{272189}}^1$

素因数の和:272286

約数の個数: 48

約数和(自身を含む): 46373010300

約数和(自身を除く): 26241911860

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1849, 3698, 7396, 9245, 14792, 18490, 36980, 73960, 272189, 544378, 1088756, 1360945, 2177512, 2721890, 5443780, 10887560, 11704127, 23408254, 46816508, 58520635, 93633016, 117041270, 234082540, 468165080, 503277461, 1006554922, 2013109844, 2516387305, 4026219688, 5032774610, 10065549220, 20131098440]

約数ペア:

[(1, 20131098440), (2, 10065549220), (4, 5032774610), (5, 4026219688), (8, 2516387305), (10, 2013109844), (20, 1006554922), (40, 503277461), (43, 468165080), (86, 234082540), (172, 117041270), (215, 93633016), (344, 58520635), (430, 46816508), (860, 23408254), (1720, 11704127), (1849, 10887560), (3698, 5443780), (7396, 2721890), (9245, 2177512), (14792, 1360945), (18490, 1088756), (36980, 544378), (73960, 272189)]