8142640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 21784320

約数和(自身を除く): 13641680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 487, 760, 836, 880, 974, 1045, 1520, 1672, 1948, 2090, 2435, 3344, 3896, 4180, 4870, 5357, 7792, 8360, 9253, 9740, 10714, 16720, 18506, 19480, 21428, 26785, 37012, 38960, 42856, 46265, 53570, 74024, 85712, 92530, 101783, 107140, 148048, 185060, 203566, 214280, 370120, 407132, 428560, 508915, 740240, 814264, 1017830, 1628528, 2035660, 4071320, 8142640]

約数ペア:

[(1, 8142640), (2, 4071320), (4, 2035660), (5, 1628528), (8, 1017830), (10, 814264), (11, 740240), (16, 508915), (19, 428560), (20, 407132), (22, 370120), (38, 214280), (40, 203566), (44, 185060), (55, 148048), (76, 107140), (80, 101783), (88, 92530), (95, 85712), (110, 74024), (152, 53570), (176, 46265), (190, 42856), (209, 38960), (220, 37012), (304, 26785), (380, 21428), (418, 19480), (440, 18506), (487, 16720), (760, 10714), (836, 9740), (880, 9253), (974, 8360), (1045, 7792), (1520, 5357), (1672, 4870), (1948, 4180), (2090, 3896), (2435, 3344)]