20616227840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4243}}^1$

素因数の和:4354

約数の個数: 176

約数和(自身を含む): 54001301088

約数和(自身を除く): 33385073248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 73, 80, 104, 128, 130, 146, 160, 208, 256, 260, 292, 320, 365, 416, 512, 520, 584, 640, 730, 832, 949, 1024, 1040, 1168, 1280, 1460, 1664, 1898, 2080, 2336, 2560, 2920, 3328, 3796, 4160, 4243, 4672, 4745, 5120, 5840, 6656, 7592, 8320, 8486, 9344, 9490, 11680, 13312, 15184, 16640, 16972, 18688, 18980, 21215, 23360, 30368, 33280, 33944, 37376, 37960, 42430, 46720, 55159, 60736, 66560, 67888, 74752, 75920, 84860, 93440, 110318, 121472, 135776, 151840, 169720, 186880, 220636, 242944, 271552, 275795, 303680, 309739, 339440, 373760, 441272, 485888, 543104, 551590, 607360, 619478, 678880, 882544, 971776, 1086208, 1103180, 1214720, 1238956, 1357760, 1548695, 1765088, 2172416, 2206360, 2429440, 2477912, 2715520, 3097390, 3530176, 4026607, 4344832, 4412720, 4858880, 4955824, 5431040, 6194780, 7060352, 8053214, 8825440, 9911648, 10862080, 12389560, 14120704, 16106428, 17650880, 19823296, 20133035, 21724160, 24779120, 28241408, 32212856, 35301760, 39646592, 40266070, 49558240, 56482816, 64425712, 70603520, 79293184, 80532140, 99116480, 128851424, 141207040, 158586368, 161064280, 198232960, 257702848, 282414080, 317172736, 322128560, 396465920, 515405696, 644257120, 792931840, 1030811392, 1288514240, 1585863680, 2061622784, 2577028480, 4123245568, 5154056960, 10308113920, 20616227840]

約数ペア:

[(1, 20616227840), (2, 10308113920), (4, 5154056960), (5, 4123245568), (8, 2577028480), (10, 2061622784), (13, 1585863680), (16, 1288514240), (20, 1030811392), (26, 792931840), (32, 644257120), (40, 515405696), (52, 396465920), (64, 322128560), (65, 317172736), (73, 282414080), (80, 257702848), (104, 198232960), (128, 161064280), (130, 158586368), (146, 141207040), (160, 128851424), (208, 99116480), (256, 80532140), (260, 79293184), (292, 70603520), (320, 64425712), (365, 56482816), (416, 49558240), (512, 40266070), (520, 39646592), (584, 35301760), (640, 32212856), (730, 28241408), (832, 24779120), (949, 21724160), (1024, 20133035), (1040, 19823296), (1168, 17650880), (1280, 16106428), (1460, 14120704), (1664, 12389560), (1898, 10862080), (2080, 9911648), (2336, 8825440), (2560, 8053214), (2920, 7060352), (3328, 6194780), (3796, 5431040), (4160, 4955824), (4243, 4858880), (4672, 4412720), (4745, 4344832), (5120, 4026607), (5840, 3530176), (6656, 3097390), (7592, 2715520), (8320, 2477912), (8486, 2429440), (9344, 2206360), (9490, 2172416), (11680, 1765088), (13312, 1548695), (15184, 1357760), (16640, 1238956), (16972, 1214720), (18688, 1103180), (18980, 1086208), (21215, 971776), (23360, 882544), (30368, 678880), (33280, 619478), (33944, 607360), (37376, 551590), (37960, 543104), (42430, 485888), (46720, 441272), (55159, 373760), (60736, 339440), (66560, 309739), (67888, 303680), (74752, 275795), (75920, 271552), (84860, 242944), (93440, 220636), (110318, 186880), (121472, 169720), (135776, 151840)]