200720079

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{28703}}^1$

素因数の和:28756

約数の個数: 32

約数和(自身を含む): 349040640

約数和(自身を除く): 148320561

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993, 28703, 86109, 200921, 258327, 602763, 774981, 1062011, 1808289, 3186033, 5424867, 7434077, 9558099, 22302231, 28674297, 66906693, 200720079]

約数ペア:

[(1, 200720079), (3, 66906693), (7, 28674297), (9, 22302231), (21, 9558099), (27, 7434077), (37, 5424867), (63, 3186033), (111, 1808289), (189, 1062011), (259, 774981), (333, 602763), (777, 258327), (999, 200921), (2331, 86109), (6993, 28703)]