20589088

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1217

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 24117728

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1151, 1376, 2236, 2302, 4472, 4604, 8944, 9208, 14963, 17888, 18416, 29926, 36832, 49493, 59852, 98986, 119704, 197972, 239408, 395944, 478816, 643409, 791888, 1286818, 1583776, 2573636, 5147272, 10294544, 20589088]

約数ペア:

[(1, 20589088), (2, 10294544), (4, 5147272), (8, 2573636), (13, 1583776), (16, 1286818), (26, 791888), (32, 643409), (43, 478816), (52, 395944), (86, 239408), (104, 197972), (172, 119704), (208, 98986), (344, 59852), (416, 49493), (559, 36832), (688, 29926), (1118, 18416), (1151, 17888), (1376, 14963), (2236, 9208), (2302, 8944), (4472, 4604)]