81990738

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 193392000

約数和(自身を除く): 111401262

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 157, 171, 314, 342, 471, 509, 513, 942, 1018, 1026, 1413, 1527, 2826, 2983, 3054, 4239, 4581, 5966, 8478, 8949, 9162, 9671, 13743, 17898, 19342, 26847, 27486, 29013, 53694, 58026, 79913, 80541, 87039, 159826, 161082, 174078, 239739, 261117, 479478, 522234, 719217, 1438434, 1518347, 2157651, 3036694, 4315302, 4555041, 9110082, 13665123, 27330246, 40995369, 81990738]

約数ペア:

[(1, 81990738), (2, 40995369), (3, 27330246), (6, 13665123), (9, 9110082), (18, 4555041), (19, 4315302), (27, 3036694), (38, 2157651), (54, 1518347), (57, 1438434), (114, 719217), (157, 522234), (171, 479478), (314, 261117), (342, 239739), (471, 174078), (509, 161082), (513, 159826), (942, 87039), (1018, 80541), (1026, 79913), (1413, 58026), (1527, 53694), (2826, 29013), (2983, 27486), (3054, 26847), (4239, 19342), (4581, 17898), (5966, 13743), (8478, 9671), (8949, 9162)]