40378978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 66718080

約数和(自身を除く): 26339102

約数列:

[1, 2, 17, 34, 43, 71, 86, 142, 389, 731, 778, 1207, 1462, 2414, 3053, 6106, 6613, 13226, 16727, 27619, 33454, 51901, 55238, 103802, 284359, 469523, 568718, 939046, 1187617, 2375234, 20189489, 40378978]

約数ペア:

[(1, 40378978), (2, 20189489), (17, 2375234), (34, 1187617), (43, 939046), (71, 568718), (86, 469523), (142, 284359), (389, 103802), (731, 55238), (778, 51901), (1207, 33454), (1462, 27619), (2414, 16727), (3053, 13226), (6106, 6613)]