81963264

素因数分解:

$2^8\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 236940480

約数和(自身を除く): 154977216

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 41, 48, 57, 64, 76, 82, 96, 114, 123, 128, 137, 152, 164, 192, 228, 246, 256, 274, 304, 328, 384, 411, 456, 492, 548, 608, 656, 768, 779, 822, 912, 984, 1096, 1216, 1312, 1558, 1644, 1824, 1968, 2192, 2337, 2432, 2603, 2624, 3116, 3288, 3648, 3936, 4384, 4674, 4864, 5206, 5248, 5617, 6232, 6576, 7296, 7809, 7872, 8768, 9348, 10412, 10496, 11234, 12464, 13152, 14592, 15618, 15744, 16851, 17536, 18696, 20824, 22468, 24928, 26304, 31236, 31488, 33702, 35072, 37392, 41648, 44936, 49856, 52608, 62472, 67404, 74784, 83296, 89872, 99712, 105216, 106723, 124944, 134808, 149568, 166592, 179744, 199424, 213446, 249888, 269616, 299136, 320169, 333184, 359488, 426892, 499776, 539232, 598272, 640338, 666368, 718976, 853784, 999552, 1078464, 1280676, 1437952, 1707568, 1999104, 2156928, 2561352, 3415136, 4313856, 5122704, 6830272, 10245408, 13660544, 20490816, 27321088, 40981632, 81963264]

約数ペア:

[(1, 81963264), (2, 40981632), (3, 27321088), (4, 20490816), (6, 13660544), (8, 10245408), (12, 6830272), (16, 5122704), (19, 4313856), (24, 3415136), (32, 2561352), (38, 2156928), (41, 1999104), (48, 1707568), (57, 1437952), (64, 1280676), (76, 1078464), (82, 999552), (96, 853784), (114, 718976), (123, 666368), (128, 640338), (137, 598272), (152, 539232), (164, 499776), (192, 426892), (228, 359488), (246, 333184), (256, 320169), (274, 299136), (304, 269616), (328, 249888), (384, 213446), (411, 199424), (456, 179744), (492, 166592), (548, 149568), (608, 134808), (656, 124944), (768, 106723), (779, 105216), (822, 99712), (912, 89872), (984, 83296), (1096, 74784), (1216, 67404), (1312, 62472), (1558, 52608), (1644, 49856), (1824, 44936), (1968, 41648), (2192, 37392), (2337, 35072), (2432, 33702), (2603, 31488), (2624, 31236), (3116, 26304), (3288, 24928), (3648, 22468), (3936, 20824), (4384, 18696), (4674, 17536), (4864, 16851), (5206, 15744), (5248, 15618), (5617, 14592), (6232, 13152), (6576, 12464), (7296, 11234), (7809, 10496), (7872, 10412), (8768, 9348)]