128677905

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 229334976

約数和(自身を除く): 100657071

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 163, 265, 331, 477, 489, 795, 815, 993, 1467, 1655, 2385, 2445, 2979, 4965, 7335, 8639, 14895, 17543, 25917, 43195, 52629, 53953, 77751, 87715, 129585, 157887, 161859, 263145, 269765, 388755, 485577, 789435, 809295, 2427885, 2859509, 8578527, 14297545, 25735581, 42892635, 128677905]

約数ペア:

[(1, 128677905), (3, 42892635), (5, 25735581), (9, 14297545), (15, 8578527), (45, 2859509), (53, 2427885), (159, 809295), (163, 789435), (265, 485577), (331, 388755), (477, 269765), (489, 263145), (795, 161859), (815, 157887), (993, 129585), (1467, 87715), (1655, 77751), (2385, 53953), (2445, 52629), (2979, 43195), (4965, 25917), (7335, 17543), (8639, 14895)]