20481632

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 42103152

約数和(自身を除く): 21621520

約数列:

[1, 2, 4, 8, 16, 32, 41, 67, 82, 134, 164, 233, 268, 328, 466, 536, 656, 932, 1072, 1312, 1864, 2144, 2747, 3728, 5494, 7456, 9553, 10988, 15611, 19106, 21976, 31222, 38212, 43952, 62444, 76424, 87904, 124888, 152848, 249776, 305696, 499552, 640051, 1280102, 2560204, 5120408, 10240816, 20481632]

約数ペア:

[(1, 20481632), (2, 10240816), (4, 5120408), (8, 2560204), (16, 1280102), (32, 640051), (41, 499552), (67, 305696), (82, 249776), (134, 152848), (164, 124888), (233, 87904), (268, 76424), (328, 62444), (466, 43952), (536, 38212), (656, 31222), (932, 21976), (1072, 19106), (1312, 15611), (1864, 10988), (2144, 9553), (2747, 7456), (3728, 5494)]