287377713

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 510592896

約数和(自身を除く): 223215183

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 73, 81, 131, 159, 189, 219, 371, 393, 477, 511, 567, 657, 917, 1113, 1179, 1431, 1533, 1971, 2751, 3339, 3537, 3869, 4293, 4599, 5913, 6943, 8253, 9563, 10017, 10611, 11607, 13797, 20829, 24759, 27083, 28689, 30051, 34821, 41391, 48601, 62487, 66941, 74277, 81249, 86067, 104463, 145803, 187461, 200823, 243747, 258201, 313389, 437409, 506839, 562383, 602469, 731241, 774603, 1312227, 1520517, 1807407, 2193723, 3547873, 3936681, 4561551, 5422221, 10643619, 13684653, 31930857, 41053959, 95792571, 287377713]

約数ペア:

[(1, 287377713), (3, 95792571), (7, 41053959), (9, 31930857), (21, 13684653), (27, 10643619), (53, 5422221), (63, 4561551), (73, 3936681), (81, 3547873), (131, 2193723), (159, 1807407), (189, 1520517), (219, 1312227), (371, 774603), (393, 731241), (477, 602469), (511, 562383), (567, 506839), (657, 437409), (917, 313389), (1113, 258201), (1179, 243747), (1431, 200823), (1533, 187461), (1971, 145803), (2751, 104463), (3339, 86067), (3537, 81249), (3869, 74277), (4293, 66941), (4599, 62487), (5913, 48601), (6943, 41391), (8253, 34821), (9563, 30051), (10017, 28689), (10611, 27083), (11607, 24759), (13797, 20829)]