81280416

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:531

約数の個数: 144

約数和(自身を含む): 255449376

約数和(自身を除く): 174168960

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 37, 42, 48, 49, 56, 74, 84, 96, 98, 111, 112, 147, 148, 168, 196, 222, 224, 259, 294, 296, 336, 392, 444, 467, 518, 588, 592, 672, 777, 784, 888, 934, 1036, 1176, 1184, 1401, 1554, 1568, 1776, 1813, 1868, 2072, 2352, 2802, 3108, 3269, 3552, 3626, 3736, 4144, 4704, 5439, 5604, 6216, 6538, 7252, 7472, 8288, 9807, 10878, 11208, 12432, 13076, 14504, 14944, 17279, 19614, 21756, 22416, 22883, 24864, 26152, 29008, 34558, 39228, 43512, 44832, 45766, 51837, 52304, 58016, 68649, 69116, 78456, 87024, 91532, 103674, 104608, 120953, 137298, 138232, 156912, 174048, 183064, 207348, 241906, 274596, 276464, 313824, 362859, 366128, 414696, 483812, 549192, 552928, 725718, 732256, 829392, 846671, 967624, 1098384, 1451436, 1658784, 1693342, 1935248, 2196768, 2540013, 2902872, 3386684, 3870496, 5080026, 5805744, 6773368, 10160052, 11611488, 13546736, 20320104, 27093472, 40640208, 81280416]

約数ペア:

[(1, 81280416), (2, 40640208), (3, 27093472), (4, 20320104), (6, 13546736), (7, 11611488), (8, 10160052), (12, 6773368), (14, 5805744), (16, 5080026), (21, 3870496), (24, 3386684), (28, 2902872), (32, 2540013), (37, 2196768), (42, 1935248), (48, 1693342), (49, 1658784), (56, 1451436), (74, 1098384), (84, 967624), (96, 846671), (98, 829392), (111, 732256), (112, 725718), (147, 552928), (148, 549192), (168, 483812), (196, 414696), (222, 366128), (224, 362859), (259, 313824), (294, 276464), (296, 274596), (336, 241906), (392, 207348), (444, 183064), (467, 174048), (518, 156912), (588, 138232), (592, 137298), (672, 120953), (777, 104608), (784, 103674), (888, 91532), (934, 87024), (1036, 78456), (1176, 69116), (1184, 68649), (1401, 58016), (1554, 52304), (1568, 51837), (1776, 45766), (1813, 44832), (1868, 43512), (2072, 39228), (2352, 34558), (2802, 29008), (3108, 26152), (3269, 24864), (3552, 22883), (3626, 22416), (3736, 21756), (4144, 19614), (4704, 17279), (5439, 14944), (5604, 14504), (6216, 13076), (6538, 12432), (7252, 11208), (7472, 10878), (8288, 9807)]