20809537616

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1259}}^1\times {\mathrm{8681}}^1$

素因数の和:9972

約数の個数: 80

約数和(自身を含む): 48833124480

約数和(自身を除く): 28023586864

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1259, 1904, 2518, 5036, 8681, 8813, 10072, 17362, 17626, 20144, 21403, 34724, 35252, 42806, 60767, 69448, 70504, 85612, 121534, 138896, 141008, 147577, 149821, 171224, 243068, 295154, 299642, 342448, 486136, 590308, 599284, 972272, 1033039, 1180616, 1198568, 2066078, 2361232, 2397136, 4132156, 8264312, 10929379, 16528624, 21858758, 43717516, 76505653, 87435032, 153011306, 174870064, 185799443, 306022612, 371598886, 612045224, 743197772, 1224090448, 1300596101, 1486395544, 2601192202, 2972791088, 5202384404, 10404768808, 20809537616]

約数ペア:

[(1, 20809537616), (2, 10404768808), (4, 5202384404), (7, 2972791088), (8, 2601192202), (14, 1486395544), (16, 1300596101), (17, 1224090448), (28, 743197772), (34, 612045224), (56, 371598886), (68, 306022612), (112, 185799443), (119, 174870064), (136, 153011306), (238, 87435032), (272, 76505653), (476, 43717516), (952, 21858758), (1259, 16528624), (1904, 10929379), (2518, 8264312), (5036, 4132156), (8681, 2397136), (8813, 2361232), (10072, 2066078), (17362, 1198568), (17626, 1180616), (20144, 1033039), (21403, 972272), (34724, 599284), (35252, 590308), (42806, 486136), (60767, 342448), (69448, 299642), (70504, 295154), (85612, 243068), (121534, 171224), (138896, 149821), (141008, 147577)]