639516

素因数分解:

$2^2\times 3^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 1506960

約数和(自身を除く): 867444

約数列:

[1, 2, 3, 4, 6, 12, 137, 274, 389, 411, 548, 778, 822, 1167, 1556, 1644, 2334, 4668, 53293, 106586, 159879, 213172, 319758, 639516]

約数ペア:

[(1, 639516), (2, 319758), (3, 213172), (4, 159879), (6, 106586), (12, 53293), (137, 4668), (274, 2334), (389, 1644), (411, 1556), (548, 1167), (778, 822)]