20901640384

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{857}}^1$

素因数の和:1566

約数の個数: 112

約数和(自身を含む): 45190379520

約数和(自身を除く): 24288739136

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 152, 248, 304, 496, 589, 608, 647, 857, 992, 1178, 1216, 1294, 1714, 1984, 2356, 2588, 3428, 4712, 5176, 6856, 9424, 10352, 12293, 13712, 16283, 18848, 20057, 20704, 24586, 26567, 27424, 32566, 37696, 40114, 41408, 49172, 53134, 54848, 65132, 80228, 98344, 106268, 130264, 160456, 196688, 212536, 260528, 320912, 381083, 393376, 425072, 504773, 521056, 554479, 641824, 762166, 786752, 850144, 1009546, 1042112, 1108958, 1283648, 1524332, 1700288, 2019092, 2217916, 3048664, 4038184, 4435832, 6097328, 8076368, 8871664, 10535101, 12194656, 16152736, 17188849, 17743328, 21070202, 24389312, 32305472, 34377698, 35486656, 42140404, 68755396, 84280808, 137510792, 168561616, 275021584, 326588131, 337123232, 550043168, 653176262, 674246464, 1100086336, 1306352524, 2612705048, 5225410096, 10450820192, 20901640384]

約数ペア:

[(1, 20901640384), (2, 10450820192), (4, 5225410096), (8, 2612705048), (16, 1306352524), (19, 1100086336), (31, 674246464), (32, 653176262), (38, 550043168), (62, 337123232), (64, 326588131), (76, 275021584), (124, 168561616), (152, 137510792), (248, 84280808), (304, 68755396), (496, 42140404), (589, 35486656), (608, 34377698), (647, 32305472), (857, 24389312), (992, 21070202), (1178, 17743328), (1216, 17188849), (1294, 16152736), (1714, 12194656), (1984, 10535101), (2356, 8871664), (2588, 8076368), (3428, 6097328), (4712, 4435832), (5176, 4038184), (6856, 3048664), (9424, 2217916), (10352, 2019092), (12293, 1700288), (13712, 1524332), (16283, 1283648), (18848, 1108958), (20057, 1042112), (20704, 1009546), (24586, 850144), (26567, 786752), (27424, 762166), (32566, 641824), (37696, 554479), (40114, 521056), (41408, 504773), (49172, 425072), (53134, 393376), (54848, 381083), (65132, 320912), (80228, 260528), (98344, 212536), (106268, 196688), (130264, 160456)]