78561008

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{213481}}^1$

素因数の和:213512

約数の個数: 20

約数和(自身を含む): 158830608

約数和(自身を除く): 80269600

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 213481, 426962, 853924, 1707848, 3415696, 4910063, 9820126, 19640252, 39280504, 78561008]

約数ペア:

[(1, 78561008), (2, 39280504), (4, 19640252), (8, 9820126), (16, 4910063), (23, 3415696), (46, 1707848), (92, 853924), (184, 426962), (368, 213481)]