256603984

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1481}}^1$

素因数の和:1533

約数の個数: 120

約数和(自身を含む): 659910888

約数和(自身を除く): 403306904

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 49, 52, 56, 68, 91, 98, 104, 112, 119, 136, 182, 196, 208, 221, 238, 272, 364, 392, 442, 476, 637, 728, 784, 833, 884, 952, 1274, 1456, 1481, 1547, 1666, 1768, 1904, 2548, 2962, 3094, 3332, 3536, 5096, 5924, 6188, 6664, 10192, 10367, 10829, 11848, 12376, 13328, 19253, 20734, 21658, 23696, 24752, 25177, 38506, 41468, 43316, 50354, 72569, 77012, 82936, 86632, 100708, 134771, 145138, 154024, 165872, 173264, 176239, 201416, 269542, 290276, 308048, 327301, 352478, 402832, 539084, 580552, 654602, 704956, 943397, 1078168, 1161104, 1233673, 1309204, 1409912, 1886794, 2156336, 2291107, 2467346, 2618408, 2819824, 3773588, 4582214, 4934692, 5236816, 7547176, 9164428, 9869384, 15094352, 16037749, 18328856, 19738768, 32075498, 36657712, 64150996, 128301992, 256603984]

約数ペア:

[(1, 256603984), (2, 128301992), (4, 64150996), (7, 36657712), (8, 32075498), (13, 19738768), (14, 18328856), (16, 16037749), (17, 15094352), (26, 9869384), (28, 9164428), (34, 7547176), (49, 5236816), (52, 4934692), (56, 4582214), (68, 3773588), (91, 2819824), (98, 2618408), (104, 2467346), (112, 2291107), (119, 2156336), (136, 1886794), (182, 1409912), (196, 1309204), (208, 1233673), (221, 1161104), (238, 1078168), (272, 943397), (364, 704956), (392, 654602), (442, 580552), (476, 539084), (637, 402832), (728, 352478), (784, 327301), (833, 308048), (884, 290276), (952, 269542), (1274, 201416), (1456, 176239), (1481, 173264), (1547, 165872), (1666, 154024), (1768, 145138), (1904, 134771), (2548, 100708), (2962, 86632), (3094, 82936), (3332, 77012), (3536, 72569), (5096, 50354), (5924, 43316), (6188, 41468), (6664, 38506), (10192, 25177), (10367, 24752), (10829, 23696), (11848, 21658), (12376, 20734), (13328, 19253)]