20138360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1237}}^1$

素因数の和:1296

約数の個数: 64

約数和(自身を含む): 50807520

約数和(自身を除く): 30669160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1237, 1480, 1628, 2035, 2474, 3256, 4070, 4948, 6185, 8140, 9896, 12370, 13607, 16280, 24740, 27214, 45769, 49480, 54428, 68035, 91538, 108856, 136070, 183076, 228845, 272140, 366152, 457690, 503459, 544280, 915380, 1006918, 1830760, 2013836, 2517295, 4027672, 5034590, 10069180, 20138360]

約数ペア:

[(1, 20138360), (2, 10069180), (4, 5034590), (5, 4027672), (8, 2517295), (10, 2013836), (11, 1830760), (20, 1006918), (22, 915380), (37, 544280), (40, 503459), (44, 457690), (55, 366152), (74, 272140), (88, 228845), (110, 183076), (148, 136070), (185, 108856), (220, 91538), (296, 68035), (370, 54428), (407, 49480), (440, 45769), (740, 27214), (814, 24740), (1237, 16280), (1480, 13607), (1628, 12370), (2035, 9896), (2474, 8140), (3256, 6185), (4070, 4948)]