20198741632

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{503}}^1$

素因数の和:754

約数の個数: 128

約数和(自身を含む): 42391036800

約数和(自身を除く): 22192295168

約数列:

[1, 2, 4, 8, 16, 32, 37, 61, 64, 74, 122, 128, 139, 148, 244, 278, 296, 488, 503, 556, 592, 976, 1006, 1112, 1184, 1952, 2012, 2224, 2257, 2368, 3904, 4024, 4448, 4514, 4736, 5143, 7808, 8048, 8479, 8896, 9028, 10286, 16096, 16958, 17792, 18056, 18611, 20572, 30683, 32192, 33916, 36112, 37222, 41144, 61366, 64384, 67832, 69917, 72224, 74444, 82288, 122732, 135664, 139834, 144448, 148888, 164576, 245464, 271328, 279668, 288896, 297776, 313723, 329152, 490928, 542656, 559336, 595552, 627446, 658304, 981856, 1085312, 1118672, 1135271, 1191104, 1254892, 1963712, 2237344, 2270542, 2382208, 2509784, 2586929, 3927424, 4264937, 4474688, 4541084, 5019568, 5173858, 8529874, 8949376, 9082168, 10039136, 10347716, 17059748, 18164336, 20078272, 20695432, 34119496, 36328672, 40156544, 41390864, 68238992, 72657344, 82781728, 136477984, 145314688, 157802669, 165563456, 272955968, 315605338, 331126912, 545911936, 631210676, 1262421352, 2524842704, 5049685408, 10099370816, 20198741632]

約数ペア:

[(1, 20198741632), (2, 10099370816), (4, 5049685408), (8, 2524842704), (16, 1262421352), (32, 631210676), (37, 545911936), (61, 331126912), (64, 315605338), (74, 272955968), (122, 165563456), (128, 157802669), (139, 145314688), (148, 136477984), (244, 82781728), (278, 72657344), (296, 68238992), (488, 41390864), (503, 40156544), (556, 36328672), (592, 34119496), (976, 20695432), (1006, 20078272), (1112, 18164336), (1184, 17059748), (1952, 10347716), (2012, 10039136), (2224, 9082168), (2257, 8949376), (2368, 8529874), (3904, 5173858), (4024, 5019568), (4448, 4541084), (4514, 4474688), (4736, 4264937), (5143, 3927424), (7808, 2586929), (8048, 2509784), (8479, 2382208), (8896, 2270542), (9028, 2237344), (10286, 1963712), (16096, 1254892), (16958, 1191104), (17792, 1135271), (18056, 1118672), (18611, 1085312), (20572, 981856), (30683, 658304), (32192, 627446), (33916, 595552), (36112, 559336), (37222, 542656), (41144, 490928), (61366, 329152), (64384, 313723), (67832, 297776), (69917, 288896), (72224, 279668), (74444, 271328), (82288, 245464), (122732, 164576), (135664, 148888), (139834, 144448)]