178639974

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{1549}}^1$

素因数の和:1749

約数の個数: 48

約数和(自身を含む): 398970000

約数和(自身を除く): 220330026

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 149, 258, 298, 387, 447, 774, 894, 1341, 1549, 2682, 3098, 4647, 6407, 9294, 12814, 13941, 19221, 27882, 38442, 57663, 66607, 115326, 133214, 199821, 230801, 399642, 461602, 599463, 692403, 1198926, 1384806, 2077209, 4154418, 9924443, 19848886, 29773329, 59546658, 89319987, 178639974]

約数ペア:

[(1, 178639974), (2, 89319987), (3, 59546658), (6, 29773329), (9, 19848886), (18, 9924443), (43, 4154418), (86, 2077209), (129, 1384806), (149, 1198926), (258, 692403), (298, 599463), (387, 461602), (447, 399642), (774, 230801), (894, 199821), (1341, 133214), (1549, 115326), (2682, 66607), (3098, 57663), (4647, 38442), (6407, 27882), (9294, 19221), (12814, 13941)]