20755504

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1$

素因数の和:1034

約数の個数: 80

約数和(自身を含む): 53139456

約数和(自身を除く): 32383952

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 56, 68, 77, 88, 112, 119, 136, 154, 176, 187, 238, 272, 308, 374, 476, 616, 748, 952, 991, 1232, 1309, 1496, 1904, 1982, 2618, 2992, 3964, 5236, 6937, 7928, 10472, 10901, 13874, 15856, 16847, 20944, 21802, 27748, 33694, 43604, 55496, 67388, 76307, 87208, 110992, 117929, 134776, 152614, 174416, 185317, 235858, 269552, 305228, 370634, 471716, 610456, 741268, 943432, 1220912, 1297219, 1482536, 1886864, 2594438, 2965072, 5188876, 10377752, 20755504]

約数ペア:

[(1, 20755504), (2, 10377752), (4, 5188876), (7, 2965072), (8, 2594438), (11, 1886864), (14, 1482536), (16, 1297219), (17, 1220912), (22, 943432), (28, 741268), (34, 610456), (44, 471716), (56, 370634), (68, 305228), (77, 269552), (88, 235858), (112, 185317), (119, 174416), (136, 152614), (154, 134776), (176, 117929), (187, 110992), (238, 87208), (272, 76307), (308, 67388), (374, 55496), (476, 43604), (616, 33694), (748, 27748), (952, 21802), (991, 20944), (1232, 16847), (1309, 15856), (1496, 13874), (1904, 10901), (1982, 10472), (2618, 7928), (2992, 6937), (3964, 5236)]