81993016

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 184135680

約数和(自身を除く): 102142664

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 73, 124, 146, 217, 248, 292, 434, 511, 584, 647, 868, 1022, 1294, 1736, 2044, 2263, 2588, 4088, 4526, 4529, 5176, 9052, 9058, 15841, 18104, 18116, 20057, 31682, 36232, 40114, 47231, 63364, 80228, 94462, 126728, 140399, 160456, 188924, 280798, 330617, 377848, 561596, 661234, 1123192, 1322468, 1464161, 2644936, 2928322, 5856644, 10249127, 11713288, 20498254, 40996508, 81993016]

約数ペア:

[(1, 81993016), (2, 40996508), (4, 20498254), (7, 11713288), (8, 10249127), (14, 5856644), (28, 2928322), (31, 2644936), (56, 1464161), (62, 1322468), (73, 1123192), (124, 661234), (146, 561596), (217, 377848), (248, 330617), (292, 280798), (434, 188924), (511, 160456), (584, 140399), (647, 126728), (868, 94462), (1022, 80228), (1294, 63364), (1736, 47231), (2044, 40114), (2263, 36232), (2588, 31682), (4088, 20057), (4526, 18116), (4529, 18104), (5176, 15841), (9052, 9058)]