20341640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 50621760

約数和(自身を除く): 30280120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 332, 415, 440, 557, 664, 830, 913, 1114, 1660, 1826, 2228, 2785, 3320, 3652, 4456, 4565, 5570, 6127, 7304, 9130, 11140, 12254, 18260, 22280, 24508, 30635, 36520, 46231, 49016, 61270, 92462, 122540, 184924, 231155, 245080, 369848, 462310, 508541, 924620, 1017082, 1849240, 2034164, 2542705, 4068328, 5085410, 10170820, 20341640]

約数ペア:

[(1, 20341640), (2, 10170820), (4, 5085410), (5, 4068328), (8, 2542705), (10, 2034164), (11, 1849240), (20, 1017082), (22, 924620), (40, 508541), (44, 462310), (55, 369848), (83, 245080), (88, 231155), (110, 184924), (166, 122540), (220, 92462), (332, 61270), (415, 49016), (440, 46231), (557, 36520), (664, 30635), (830, 24508), (913, 22280), (1114, 18260), (1660, 12254), (1826, 11140), (2228, 9130), (2785, 7304), (3320, 6127), (3652, 5570), (4456, 4565)]