215689725

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 401349312

約数和(自身を除く): 185659587

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 103, 123, 205, 225, 227, 309, 369, 515, 615, 681, 927, 1025, 1135, 1545, 1845, 2043, 2575, 3075, 3405, 4223, 4635, 5675, 7725, 9225, 9307, 10215, 12669, 17025, 21115, 23175, 23381, 27921, 38007, 46535, 51075, 63345, 70143, 83763, 105575, 116905, 139605, 190035, 210429, 232675, 316725, 350715, 418815, 584525, 698025, 950175, 958621, 1052145, 1753575, 2094075, 2875863, 4793105, 5260725, 8627589, 14379315, 23965525, 43137945, 71896575, 215689725]

約数ペア:

[(1, 215689725), (3, 71896575), (5, 43137945), (9, 23965525), (15, 14379315), (25, 8627589), (41, 5260725), (45, 4793105), (75, 2875863), (103, 2094075), (123, 1753575), (205, 1052145), (225, 958621), (227, 950175), (309, 698025), (369, 584525), (515, 418815), (615, 350715), (681, 316725), (927, 232675), (1025, 210429), (1135, 190035), (1545, 139605), (1845, 116905), (2043, 105575), (2575, 83763), (3075, 70143), (3405, 63345), (4223, 51075), (4635, 46535), (5675, 38007), (7725, 27921), (9225, 23381), (9307, 23175), (10215, 21115), (12669, 17025)]