211305185

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 327849984

約数和(自身を除く): 116544799

約数列:

[1, 5, 7, 13, 35, 41, 47, 65, 91, 205, 235, 241, 287, 329, 455, 533, 611, 1205, 1435, 1645, 1687, 1927, 2665, 3055, 3133, 3731, 4277, 8435, 9635, 9881, 11327, 13489, 15665, 18655, 21385, 21931, 25051, 49405, 56635, 67445, 69167, 79289, 109655, 125255, 128453, 147251, 175357, 345835, 396445, 464407, 642265, 736255, 876785, 899171, 1030757, 2322035, 3250849, 4495855, 5153785, 6037291, 16254245, 30186455, 42261037, 211305185]

約数ペア:

[(1, 211305185), (5, 42261037), (7, 30186455), (13, 16254245), (35, 6037291), (41, 5153785), (47, 4495855), (65, 3250849), (91, 2322035), (205, 1030757), (235, 899171), (241, 876785), (287, 736255), (329, 642265), (455, 464407), (533, 396445), (611, 345835), (1205, 175357), (1435, 147251), (1645, 128453), (1687, 125255), (1927, 109655), (2665, 79289), (3055, 69167), (3133, 67445), (3731, 56635), (4277, 49405), (8435, 25051), (9635, 21931), (9881, 21385), (11327, 18655), (13489, 15665)]