54381980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{521}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 121546656

約数和(自身を除く): 67164676

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 307, 340, 521, 614, 1042, 1228, 1535, 2084, 2605, 3070, 5210, 5219, 6140, 8857, 10420, 10438, 17714, 20876, 26095, 35428, 44285, 52190, 88570, 104380, 159947, 177140, 319894, 639788, 799735, 1599470, 2719099, 3198940, 5438198, 10876396, 13595495, 27190990, 54381980]

約数ペア:

[(1, 54381980), (2, 27190990), (4, 13595495), (5, 10876396), (10, 5438198), (17, 3198940), (20, 2719099), (34, 1599470), (68, 799735), (85, 639788), (170, 319894), (307, 177140), (340, 159947), (521, 104380), (614, 88570), (1042, 52190), (1228, 44285), (1535, 35428), (2084, 26095), (2605, 20876), (3070, 17714), (5210, 10438), (5219, 10420), (6140, 8857)]