81371528

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2467}}^1$

素因数の和:2530

約数の個数: 64

約数和(自身を含む): 189542400

約数和(自身を除く): 108170872

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 868, 1064, 1178, 1736, 2356, 2467, 4123, 4712, 4934, 8246, 9868, 16492, 17269, 19736, 32984, 34538, 46873, 69076, 76477, 93746, 138152, 152954, 187492, 305908, 328111, 374984, 535339, 611816, 656222, 1070678, 1312444, 1453063, 2141356, 2624888, 2906126, 4282712, 5812252, 10171441, 11624504, 20342882, 40685764, 81371528]

約数ペア:

[(1, 81371528), (2, 40685764), (4, 20342882), (7, 11624504), (8, 10171441), (14, 5812252), (19, 4282712), (28, 2906126), (31, 2624888), (38, 2141356), (56, 1453063), (62, 1312444), (76, 1070678), (124, 656222), (133, 611816), (152, 535339), (217, 374984), (248, 328111), (266, 305908), (434, 187492), (532, 152954), (589, 138152), (868, 93746), (1064, 76477), (1178, 69076), (1736, 46873), (2356, 34538), (2467, 32984), (4123, 19736), (4712, 17269), (4934, 16492), (8246, 9868)]