20851072

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 25416128

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 64, 88, 118, 128, 176, 236, 251, 352, 472, 502, 649, 704, 944, 1004, 1298, 1408, 1888, 2008, 2596, 2761, 3776, 4016, 5192, 5522, 7552, 8032, 10384, 11044, 14809, 16064, 20768, 22088, 29618, 32128, 41536, 44176, 59236, 83072, 88352, 118472, 162899, 176704, 236944, 325798, 353408, 473888, 651596, 947776, 1303192, 1895552, 2606384, 5212768, 10425536, 20851072]

約数ペア:

[(1, 20851072), (2, 10425536), (4, 5212768), (8, 2606384), (11, 1895552), (16, 1303192), (22, 947776), (32, 651596), (44, 473888), (59, 353408), (64, 325798), (88, 236944), (118, 176704), (128, 162899), (176, 118472), (236, 88352), (251, 83072), (352, 59236), (472, 44176), (502, 41536), (649, 32128), (704, 29618), (944, 22088), (1004, 20768), (1298, 16064), (1408, 14809), (1888, 11044), (2008, 10384), (2596, 8032), (2761, 7552), (3776, 5522), (4016, 5192)]