81171952

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1949}}^1$

素因数の和:2113

約数の個数: 40

約数和(自身を含む): 166842000

約数和(自身を除く): 85670048

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 137, 152, 274, 304, 548, 1096, 1949, 2192, 2603, 3898, 5206, 7796, 10412, 15592, 20824, 31184, 37031, 41648, 74062, 148124, 267013, 296248, 534026, 592496, 1068052, 2136104, 4272208, 5073247, 10146494, 20292988, 40585976, 81171952]

約数ペア:

[(1, 81171952), (2, 40585976), (4, 20292988), (8, 10146494), (16, 5073247), (19, 4272208), (38, 2136104), (76, 1068052), (137, 592496), (152, 534026), (274, 296248), (304, 267013), (548, 148124), (1096, 74062), (1949, 41648), (2192, 37031), (2603, 31184), (3898, 20824), (5206, 15592), (7796, 10412)]