81993968

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{727}}^1$

素因数の和:814

約数の個数: 80

約数和(自身を含む): 194987520

約数和(自身を除く): 112993552

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 53, 56, 76, 106, 112, 133, 152, 212, 266, 304, 371, 424, 532, 727, 742, 848, 1007, 1064, 1454, 1484, 2014, 2128, 2908, 2968, 4028, 5089, 5816, 5936, 7049, 8056, 10178, 11632, 13813, 14098, 16112, 20356, 27626, 28196, 38531, 40712, 55252, 56392, 77062, 81424, 96691, 110504, 112784, 154124, 193382, 221008, 269717, 308248, 386764, 539434, 616496, 732089, 773528, 1078868, 1464178, 1547056, 2157736, 2928356, 4315472, 5124623, 5856712, 10249246, 11713424, 20498492, 40996984, 81993968]

約数ペア:

[(1, 81993968), (2, 40996984), (4, 20498492), (7, 11713424), (8, 10249246), (14, 5856712), (16, 5124623), (19, 4315472), (28, 2928356), (38, 2157736), (53, 1547056), (56, 1464178), (76, 1078868), (106, 773528), (112, 732089), (133, 616496), (152, 539434), (212, 386764), (266, 308248), (304, 269717), (371, 221008), (424, 193382), (532, 154124), (727, 112784), (742, 110504), (848, 96691), (1007, 81424), (1064, 77062), (1454, 56392), (1484, 55252), (2014, 40712), (2128, 38531), (2908, 28196), (2968, 27626), (4028, 20356), (5089, 16112), (5816, 14098), (5936, 13813), (7049, 11632), (8056, 10178)]