81721376

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1297}}^1$

素因数の和:1497

約数の個数: 48

約数和(自身を含む): 176631840

約数和(自身を除く): 94910464

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 179, 352, 358, 716, 1297, 1432, 1969, 2594, 2864, 3938, 5188, 5728, 7876, 10376, 14267, 15752, 20752, 28534, 31504, 41504, 57068, 63008, 114136, 228272, 232163, 456544, 464326, 928652, 1857304, 2553793, 3714608, 5107586, 7429216, 10215172, 20430344, 40860688, 81721376]

約数ペア:

[(1, 81721376), (2, 40860688), (4, 20430344), (8, 10215172), (11, 7429216), (16, 5107586), (22, 3714608), (32, 2553793), (44, 1857304), (88, 928652), (176, 464326), (179, 456544), (352, 232163), (358, 228272), (716, 114136), (1297, 63008), (1432, 57068), (1969, 41504), (2594, 31504), (2864, 28534), (3938, 20752), (5188, 15752), (5728, 14267), (7876, 10376)]