20587216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3413}}^1$

素因数の和:3463

約数の個数: 40

約数和(自身を含む): 44450280

約数和(自身を除く): 23863064

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 208, 232, 377, 464, 754, 1508, 3016, 3413, 6032, 6826, 13652, 27304, 44369, 54608, 88738, 98977, 177476, 197954, 354952, 395908, 709904, 791816, 1286701, 1583632, 2573402, 5146804, 10293608, 20587216]

約数ペア:

[(1, 20587216), (2, 10293608), (4, 5146804), (8, 2573402), (13, 1583632), (16, 1286701), (26, 791816), (29, 709904), (52, 395908), (58, 354952), (104, 197954), (116, 177476), (208, 98977), (232, 88738), (377, 54608), (464, 44369), (754, 27304), (1508, 13652), (3016, 6826), (3413, 6032)]