20340848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2459}}^1$

素因数の和:2525

約数の個数: 40

約数和(自身を含む): 43925760

約数和(自身を除く): 23584912

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 176, 188, 376, 517, 752, 1034, 2068, 2459, 4136, 4918, 8272, 9836, 19672, 27049, 39344, 54098, 108196, 115573, 216392, 231146, 432784, 462292, 924584, 1271303, 1849168, 2542606, 5085212, 10170424, 20340848]

約数ペア:

[(1, 20340848), (2, 10170424), (4, 5085212), (8, 2542606), (11, 1849168), (16, 1271303), (22, 924584), (44, 462292), (47, 432784), (88, 231146), (94, 216392), (176, 115573), (188, 108196), (376, 54098), (517, 39344), (752, 27049), (1034, 19672), (2068, 9836), (2459, 8272), (4136, 4918)]