20153758075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61637}}^1$

素因数の和:61728

約数の個数: 48

約数和(自身を含む): 28890963360

約数和(自身を除く): 8737205285

約数列:

[1, 5, 11, 25, 29, 41, 55, 145, 205, 275, 319, 451, 725, 1025, 1189, 1595, 2255, 5945, 7975, 11275, 13079, 29725, 61637, 65395, 308185, 326975, 678007, 1540925, 1787473, 2527117, 3390035, 8937365, 12635585, 16950175, 19662203, 27798287, 44686825, 63177925, 73286393, 98311015, 138991435, 366431965, 491555075, 694957175, 806150323, 1832159825, 4030751615, 20153758075]

約数ペア:

[(1, 20153758075), (5, 4030751615), (11, 1832159825), (25, 806150323), (29, 694957175), (41, 491555075), (55, 366431965), (145, 138991435), (205, 98311015), (275, 73286393), (319, 63177925), (451, 44686825), (725, 27798287), (1025, 19662203), (1189, 16950175), (1595, 12635585), (2255, 8937365), (5945, 3390035), (7975, 2527117), (11275, 1787473), (13079, 1540925), (29725, 678007), (61637, 326975), (65395, 308185)]