642392478

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4217}}^1$

素因数の和:4279

約数の個数: 128

約数和(自身を含む): 1814077440

約数和(自身を除く): 1171684962

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 31, 39, 42, 54, 62, 63, 78, 91, 93, 117, 126, 182, 186, 189, 217, 234, 273, 279, 351, 378, 403, 434, 546, 558, 651, 702, 806, 819, 837, 1209, 1302, 1638, 1674, 1953, 2418, 2457, 2821, 3627, 3906, 4217, 4914, 5642, 5859, 7254, 8434, 8463, 10881, 11718, 12651, 16926, 21762, 25302, 25389, 29519, 37953, 50778, 54821, 59038, 75906, 76167, 88557, 109642, 113859, 130727, 152334, 164463, 177114, 227718, 261454, 265671, 328926, 383747, 392181, 493389, 531342, 767494, 784362, 797013, 915089, 986778, 1151241, 1176543, 1480167, 1594026, 1699451, 1830178, 2302482, 2353086, 2745267, 2960334, 3398902, 3453723, 3529629, 5098353, 5490534, 6907446, 7059258, 8235801, 10196706, 10361169, 11896157, 15295059, 16471602, 20722338, 23792314, 24707403, 30590118, 35688471, 45885177, 49414806, 71376942, 91770354, 107065413, 214130826, 321196239, 642392478]

約数ペア:

[(1, 642392478), (2, 321196239), (3, 214130826), (6, 107065413), (7, 91770354), (9, 71376942), (13, 49414806), (14, 45885177), (18, 35688471), (21, 30590118), (26, 24707403), (27, 23792314), (31, 20722338), (39, 16471602), (42, 15295059), (54, 11896157), (62, 10361169), (63, 10196706), (78, 8235801), (91, 7059258), (93, 6907446), (117, 5490534), (126, 5098353), (182, 3529629), (186, 3453723), (189, 3398902), (217, 2960334), (234, 2745267), (273, 2353086), (279, 2302482), (351, 1830178), (378, 1699451), (403, 1594026), (434, 1480167), (546, 1176543), (558, 1151241), (651, 986778), (702, 915089), (806, 797013), (819, 784362), (837, 767494), (1209, 531342), (1302, 493389), (1638, 392181), (1674, 383747), (1953, 328926), (2418, 265671), (2457, 261454), (2821, 227718), (3627, 177114), (3906, 164463), (4217, 152334), (4914, 130727), (5642, 113859), (5859, 109642), (7254, 88557), (8434, 76167), (8463, 75906), (10881, 59038), (11718, 54821), (12651, 50778), (16926, 37953), (21762, 29519), (25302, 25389)]