686148918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:390

約数の個数: 128

約数和(自身を含む): 1743565824

約数和(自身を除く): 1057416906

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 53, 78, 91, 106, 131, 159, 181, 182, 262, 273, 318, 362, 371, 393, 543, 546, 689, 742, 786, 917, 1086, 1113, 1267, 1378, 1703, 1834, 2067, 2226, 2353, 2534, 2751, 3406, 3801, 4134, 4706, 4823, 5109, 5502, 6943, 7059, 7602, 9593, 9646, 10218, 11921, 13886, 14118, 14469, 16471, 19186, 20829, 23711, 23842, 28779, 28938, 32942, 35763, 41658, 47422, 48601, 49413, 57558, 67151, 71133, 71526, 90259, 97202, 98826, 124709, 134302, 142266, 145803, 165977, 180518, 201453, 249418, 270777, 291606, 308243, 331954, 374127, 402906, 497931, 541554, 616486, 631813, 748254, 872963, 924729, 995862, 1256683, 1263626, 1745926, 1849458, 1895439, 2157701, 2513366, 2618889, 3770049, 3790878, 4315402, 5237778, 6473103, 7540098, 8796781, 12946206, 16336879, 17593562, 26390343, 32673758, 49010637, 52780686, 98021274, 114358153, 228716306, 343074459, 686148918]

約数ペア:

[(1, 686148918), (2, 343074459), (3, 228716306), (6, 114358153), (7, 98021274), (13, 52780686), (14, 49010637), (21, 32673758), (26, 26390343), (39, 17593562), (42, 16336879), (53, 12946206), (78, 8796781), (91, 7540098), (106, 6473103), (131, 5237778), (159, 4315402), (181, 3790878), (182, 3770049), (262, 2618889), (273, 2513366), (318, 2157701), (362, 1895439), (371, 1849458), (393, 1745926), (543, 1263626), (546, 1256683), (689, 995862), (742, 924729), (786, 872963), (917, 748254), (1086, 631813), (1113, 616486), (1267, 541554), (1378, 497931), (1703, 402906), (1834, 374127), (2067, 331954), (2226, 308243), (2353, 291606), (2534, 270777), (2751, 249418), (3406, 201453), (3801, 180518), (4134, 165977), (4706, 145803), (4823, 142266), (5109, 134302), (5502, 124709), (6943, 98826), (7059, 97202), (7602, 90259), (9593, 71526), (9646, 71133), (10218, 67151), (11921, 57558), (13886, 49413), (14118, 48601), (14469, 47422), (16471, 41658), (19186, 35763), (20829, 32942), (23711, 28938), (23842, 28779)]