209767905

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1\times {\mathrm{313}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 372964176

約数和(自身を除く): 163196271

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 281, 313, 477, 795, 843, 939, 1405, 1565, 2385, 2529, 2817, 4215, 4695, 12645, 14085, 14893, 16589, 44679, 49767, 74465, 82945, 87953, 134037, 149301, 223395, 248835, 263859, 439765, 670185, 746505, 791577, 1319295, 3957885, 4661509, 13984527, 23307545, 41953581, 69922635, 209767905]

約数ペア:

[(1, 209767905), (3, 69922635), (5, 41953581), (9, 23307545), (15, 13984527), (45, 4661509), (53, 3957885), (159, 1319295), (265, 791577), (281, 746505), (313, 670185), (477, 439765), (795, 263859), (843, 248835), (939, 223395), (1405, 149301), (1565, 134037), (2385, 87953), (2529, 82945), (2817, 74465), (4215, 49767), (4695, 44679), (12645, 16589), (14085, 14893)]