261962792

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 652458240

約数和(自身を除く): 390495448

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 61, 68, 91, 104, 119, 122, 136, 182, 221, 238, 244, 347, 364, 427, 442, 476, 488, 694, 728, 793, 854, 884, 952, 1037, 1388, 1547, 1586, 1708, 1768, 2074, 2429, 2776, 3094, 3172, 3416, 4148, 4511, 4858, 5551, 5899, 6188, 6344, 7259, 8296, 9022, 9716, 11102, 11798, 12376, 13481, 14518, 18044, 19432, 21167, 22204, 23596, 26962, 29036, 31577, 36088, 41293, 42334, 44408, 47192, 53924, 58072, 63154, 76687, 82586, 84668, 94367, 107848, 126308, 148169, 153374, 165172, 169336, 188734, 252616, 275171, 296338, 306748, 330344, 359839, 377468, 536809, 550342, 592676, 613496, 719678, 754936, 1073618, 1100684, 1185352, 1439356, 1926197, 2147236, 2201368, 2518873, 2878712, 3852394, 4294472, 4677907, 5037746, 7704788, 9355814, 10075492, 15409576, 18711628, 20150984, 32745349, 37423256, 65490698, 130981396, 261962792]

約数ペア:

[(1, 261962792), (2, 130981396), (4, 65490698), (7, 37423256), (8, 32745349), (13, 20150984), (14, 18711628), (17, 15409576), (26, 10075492), (28, 9355814), (34, 7704788), (52, 5037746), (56, 4677907), (61, 4294472), (68, 3852394), (91, 2878712), (104, 2518873), (119, 2201368), (122, 2147236), (136, 1926197), (182, 1439356), (221, 1185352), (238, 1100684), (244, 1073618), (347, 754936), (364, 719678), (427, 613496), (442, 592676), (476, 550342), (488, 536809), (694, 377468), (728, 359839), (793, 330344), (854, 306748), (884, 296338), (952, 275171), (1037, 252616), (1388, 188734), (1547, 169336), (1586, 165172), (1708, 153374), (1768, 148169), (2074, 126308), (2429, 107848), (2776, 94367), (3094, 84668), (3172, 82586), (3416, 76687), (4148, 63154), (4511, 58072), (4858, 53924), (5551, 47192), (5899, 44408), (6188, 42334), (6344, 41293), (7259, 36088), (8296, 31577), (9022, 29036), (9716, 26962), (11102, 23596), (11798, 22204), (12376, 21167), (13481, 19432), (14518, 18044)]