20565577984

素因数分解:

$2^8\times 7^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:281

約数の個数: 216

約数和(自身を含む): 49281559488

約数和(自身を除く): 28715981504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 83, 101, 112, 128, 148, 166, 202, 224, 256, 259, 296, 332, 404, 448, 518, 581, 592, 664, 707, 808, 896, 1036, 1162, 1184, 1328, 1369, 1414, 1616, 1792, 2072, 2324, 2368, 2656, 2738, 2828, 3071, 3232, 3737, 4144, 4648, 4736, 5312, 5476, 5656, 6142, 6464, 7474, 8288, 8383, 9296, 9472, 9583, 10624, 10952, 11312, 12284, 12928, 14948, 16576, 16766, 18592, 19166, 21248, 21497, 21904, 22624, 24568, 25856, 26159, 29896, 33152, 33532, 37184, 38332, 42994, 43808, 45248, 49136, 52318, 58681, 59792, 66304, 67064, 74368, 76664, 85988, 87616, 90496, 98272, 104636, 113627, 117362, 119584, 134128, 138269, 148736, 153328, 171976, 175232, 180992, 196544, 209272, 227254, 234724, 239168, 268256, 276538, 306656, 310171, 343952, 350464, 393088, 418544, 454508, 469448, 478336, 536512, 553076, 613312, 620342, 687904, 786176, 795389, 837088, 909016, 938896, 956672, 967883, 1073024, 1106152, 1226624, 1240684, 1375808, 1590778, 1674176, 1818032, 1877792, 1935766, 2146048, 2171197, 2212304, 2453248, 2481368, 2751616, 3181556, 3348352, 3636064, 3755584, 3871532, 4342394, 4424608, 4962736, 5503232, 6363112, 6696704, 7272128, 7511168, 7743064, 8684788, 8849216, 9925472, 11476327, 12726224, 14544256, 15022336, 15486128, 17369576, 17698432, 19850944, 22952654, 25452448, 29088512, 30972256, 34739152, 35396864, 39701888, 45905308, 50904896, 61944512, 69478304, 79403776, 80334289, 91810616, 101809792, 123889024, 138956608, 160668578, 183621232, 203619584, 247778048, 277913216, 321337156, 367242464, 555826432, 642674312, 734484928, 1285348624, 1468969856, 2570697248, 2937939712, 5141394496, 10282788992, 20565577984]

約数ペア:

[(1, 20565577984), (2, 10282788992), (4, 5141394496), (7, 2937939712), (8, 2570697248), (14, 1468969856), (16, 1285348624), (28, 734484928), (32, 642674312), (37, 555826432), (56, 367242464), (64, 321337156), (74, 277913216), (83, 247778048), (101, 203619584), (112, 183621232), (128, 160668578), (148, 138956608), (166, 123889024), (202, 101809792), (224, 91810616), (256, 80334289), (259, 79403776), (296, 69478304), (332, 61944512), (404, 50904896), (448, 45905308), (518, 39701888), (581, 35396864), (592, 34739152), (664, 30972256), (707, 29088512), (808, 25452448), (896, 22952654), (1036, 19850944), (1162, 17698432), (1184, 17369576), (1328, 15486128), (1369, 15022336), (1414, 14544256), (1616, 12726224), (1792, 11476327), (2072, 9925472), (2324, 8849216), (2368, 8684788), (2656, 7743064), (2738, 7511168), (2828, 7272128), (3071, 6696704), (3232, 6363112), (3737, 5503232), (4144, 4962736), (4648, 4424608), (4736, 4342394), (5312, 3871532), (5476, 3755584), (5656, 3636064), (6142, 3348352), (6464, 3181556), (7474, 2751616), (8288, 2481368), (8383, 2453248), (9296, 2212304), (9472, 2171197), (9583, 2146048), (10624, 1935766), (10952, 1877792), (11312, 1818032), (12284, 1674176), (12928, 1590778), (14948, 1375808), (16576, 1240684), (16766, 1226624), (18592, 1106152), (19166, 1073024), (21248, 967883), (21497, 956672), (21904, 938896), (22624, 909016), (24568, 837088), (25856, 795389), (26159, 786176), (29896, 687904), (33152, 620342), (33532, 613312), (37184, 553076), (38332, 536512), (42994, 478336), (43808, 469448), (45248, 454508), (49136, 418544), (52318, 393088), (58681, 350464), (59792, 343952), (66304, 310171), (67064, 306656), (74368, 276538), (76664, 268256), (85988, 239168), (87616, 234724), (90496, 227254), (98272, 209272), (104636, 196544), (113627, 180992), (117362, 175232), (119584, 171976), (134128, 153328), (138269, 148736)]