1640280078

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{28309}}^1$

素因数の和:28386

約数の個数: 64

約数和(自身を含む): 3872808000

約数和(自身を除く): 2232527922

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 37, 54, 58, 74, 87, 111, 174, 222, 261, 333, 522, 666, 783, 999, 1073, 1566, 1998, 2146, 3219, 6438, 9657, 19314, 28309, 28971, 56618, 57942, 84927, 169854, 254781, 509562, 764343, 820961, 1047433, 1528686, 1641922, 2094866, 2462883, 3142299, 4925766, 6284598, 7388649, 9426897, 14777298, 18853794, 22165947, 28280691, 30375557, 44331894, 56561382, 60751114, 91126671, 182253342, 273380013, 546760026, 820140039, 1640280078]

約数ペア:

[(1, 1640280078), (2, 820140039), (3, 546760026), (6, 273380013), (9, 182253342), (18, 91126671), (27, 60751114), (29, 56561382), (37, 44331894), (54, 30375557), (58, 28280691), (74, 22165947), (87, 18853794), (111, 14777298), (174, 9426897), (222, 7388649), (261, 6284598), (333, 4925766), (522, 3142299), (666, 2462883), (783, 2094866), (999, 1641922), (1073, 1528686), (1566, 1047433), (1998, 820961), (2146, 764343), (3219, 509562), (6438, 254781), (9657, 169854), (19314, 84927), (28309, 57942), (28971, 56618)]