2047981640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{51769}}^1$

素因数の和:51846

約数の個数: 64

約数和(自身を含む): 4920220800

約数和(自身を除く): 2872239160

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 860, 920, 989, 1720, 1978, 3956, 4945, 7912, 9890, 19780, 39560, 51769, 103538, 207076, 258845, 414152, 517690, 1035380, 1190687, 2070760, 2226067, 2381374, 4452134, 4762748, 5953435, 8904268, 9525496, 11130335, 11906870, 17808536, 22260670, 23813740, 44521340, 47627480, 51199541, 89042680, 102399082, 204798164, 255997705, 409596328, 511995410, 1023990820, 2047981640]

約数ペア:

[(1, 2047981640), (2, 1023990820), (4, 511995410), (5, 409596328), (8, 255997705), (10, 204798164), (20, 102399082), (23, 89042680), (40, 51199541), (43, 47627480), (46, 44521340), (86, 23813740), (92, 22260670), (115, 17808536), (172, 11906870), (184, 11130335), (215, 9525496), (230, 8904268), (344, 5953435), (430, 4762748), (460, 4452134), (860, 2381374), (920, 2226067), (989, 2070760), (1720, 1190687), (1978, 1035380), (3956, 517690), (4945, 414152), (7912, 258845), (9890, 207076), (19780, 103538), (39560, 51769)]