61979175

素因数分解:

$3^4\times 5^2\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 60

約数和(自身を含む): 116190976

約数和(自身を除く): 54211801

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 127, 135, 225, 241, 381, 405, 635, 675, 723, 1143, 1205, 1905, 2025, 2169, 3175, 3429, 3615, 5715, 6025, 6507, 9525, 10287, 10845, 17145, 18075, 19521, 28575, 30607, 32535, 51435, 54225, 85725, 91821, 97605, 153035, 162675, 257175, 275463, 459105, 488025, 765175, 826389, 1377315, 2295525, 2479167, 4131945, 6886575, 12395835, 20659725, 61979175]

約数ペア:

[(1, 61979175), (3, 20659725), (5, 12395835), (9, 6886575), (15, 4131945), (25, 2479167), (27, 2295525), (45, 1377315), (75, 826389), (81, 765175), (127, 488025), (135, 459105), (225, 275463), (241, 257175), (381, 162675), (405, 153035), (635, 97605), (675, 91821), (723, 85725), (1143, 54225), (1205, 51435), (1905, 32535), (2025, 30607), (2169, 28575), (3175, 19521), (3429, 18075), (3615, 17145), (5715, 10845), (6025, 10287), (6507, 9525)]