20903670368

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:725

約数の個数: 192

約数和(自身を含む): 49906741248

約数和(自身を除く): 29003070880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 47, 56, 74, 94, 103, 112, 148, 188, 206, 224, 259, 296, 329, 376, 412, 518, 521, 592, 658, 721, 752, 824, 1036, 1042, 1184, 1316, 1442, 1504, 1648, 1739, 2072, 2084, 2632, 2884, 3296, 3478, 3647, 3811, 4144, 4168, 4841, 5264, 5768, 6956, 7294, 7622, 8288, 8336, 9682, 10528, 11536, 12173, 13912, 14588, 15244, 16672, 19277, 19364, 23072, 24346, 24487, 26677, 27824, 29176, 30488, 33887, 38554, 38728, 48692, 48974, 53354, 53663, 55648, 58352, 60976, 67774, 77108, 77456, 97384, 97948, 106708, 107326, 116704, 121952, 134939, 135548, 154216, 154912, 171409, 179117, 194768, 195896, 213416, 214652, 269878, 271096, 308432, 342818, 358234, 375641, 389536, 391792, 426832, 429304, 539756, 542192, 616864, 685636, 716468, 751282, 783584, 853664, 858608, 906019, 1079512, 1084384, 1253819, 1371272, 1432936, 1502564, 1717216, 1812038, 1985531, 2159024, 2507638, 2522161, 2742544, 2865872, 3005128, 3624076, 3971062, 4318048, 5015276, 5044322, 5485088, 5731744, 6010256, 6342133, 7248152, 7942124, 10030552, 10088644, 12020512, 12684266, 13898717, 14496304, 15884248, 17655127, 20061104, 20177288, 25368532, 27797434, 28992608, 31768496, 35310254, 40122208, 40354576, 50737064, 55594868, 63536992, 70620508, 80709152, 93319957, 101474128, 111189736, 141241016, 186639914, 202948256, 222379472, 282482032, 373279828, 444758944, 564964064, 653239699, 746559656, 1306479398, 1493119312, 2612958796, 2986238624, 5225917592, 10451835184, 20903670368]

約数ペア:

[(1, 20903670368), (2, 10451835184), (4, 5225917592), (7, 2986238624), (8, 2612958796), (14, 1493119312), (16, 1306479398), (28, 746559656), (32, 653239699), (37, 564964064), (47, 444758944), (56, 373279828), (74, 282482032), (94, 222379472), (103, 202948256), (112, 186639914), (148, 141241016), (188, 111189736), (206, 101474128), (224, 93319957), (259, 80709152), (296, 70620508), (329, 63536992), (376, 55594868), (412, 50737064), (518, 40354576), (521, 40122208), (592, 35310254), (658, 31768496), (721, 28992608), (752, 27797434), (824, 25368532), (1036, 20177288), (1042, 20061104), (1184, 17655127), (1316, 15884248), (1442, 14496304), (1504, 13898717), (1648, 12684266), (1739, 12020512), (2072, 10088644), (2084, 10030552), (2632, 7942124), (2884, 7248152), (3296, 6342133), (3478, 6010256), (3647, 5731744), (3811, 5485088), (4144, 5044322), (4168, 5015276), (4841, 4318048), (5264, 3971062), (5768, 3624076), (6956, 3005128), (7294, 2865872), (7622, 2742544), (8288, 2522161), (8336, 2507638), (9682, 2159024), (10528, 1985531), (11536, 1812038), (12173, 1717216), (13912, 1502564), (14588, 1432936), (15244, 1371272), (16672, 1253819), (19277, 1084384), (19364, 1079512), (23072, 906019), (24346, 858608), (24487, 853664), (26677, 783584), (27824, 751282), (29176, 716468), (30488, 685636), (33887, 616864), (38554, 542192), (38728, 539756), (48692, 429304), (48974, 426832), (53354, 391792), (53663, 389536), (55648, 375641), (58352, 358234), (60976, 342818), (67774, 308432), (77108, 271096), (77456, 269878), (97384, 214652), (97948, 213416), (106708, 195896), (107326, 194768), (116704, 179117), (121952, 171409), (134939, 154912), (135548, 154216)]