200809987

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:248

約数の個数: 36

約数和(自身を含む): 250150656

約数和(自身を除く): 49340669

約数列:

[1, 7, 23, 49, 61, 127, 161, 427, 529, 889, 1127, 1403, 2921, 2989, 3703, 6223, 7747, 9821, 20447, 25921, 32269, 54229, 67183, 68747, 143129, 178181, 225883, 379603, 470281, 1247267, 1581181, 3291967, 4098163, 8730869, 28687141, 200809987]

約数ペア:

[(1, 200809987), (7, 28687141), (23, 8730869), (49, 4098163), (61, 3291967), (127, 1581181), (161, 1247267), (427, 470281), (529, 379603), (889, 225883), (1127, 178181), (1403, 143129), (2921, 68747), (2989, 67183), (3703, 54229), (6223, 32269), (7747, 25921), (9821, 20447)]