551520380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{8161}}^1$

素因数の和:8310

約数の個数: 48

約数和(自身を含む): 1206670080

約数和(自身を除く): 655149700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 436, 545, 620, 1090, 2180, 3379, 6758, 8161, 13516, 16322, 16895, 32644, 33790, 40805, 67580, 81610, 163220, 252991, 505982, 889549, 1011964, 1264955, 1779098, 2529910, 3558196, 4447745, 5059820, 8895490, 17790980, 27576019, 55152038, 110304076, 137880095, 275760190, 551520380]

約数ペア:

[(1, 551520380), (2, 275760190), (4, 137880095), (5, 110304076), (10, 55152038), (20, 27576019), (31, 17790980), (62, 8895490), (109, 5059820), (124, 4447745), (155, 3558196), (218, 2529910), (310, 1779098), (436, 1264955), (545, 1011964), (620, 889549), (1090, 505982), (2180, 252991), (3379, 163220), (6758, 81610), (8161, 67580), (13516, 40805), (16322, 33790), (16895, 32644)]