20785744

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8069}}^1$

素因数の和:8107

約数の個数: 40

約数和(自身を含む): 48032640

約数和(自身を除く): 27246896

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8069, 16138, 32276, 56483, 64552, 112966, 129104, 185587, 225932, 371174, 451864, 742348, 903728, 1299109, 1484696, 2598218, 2969392, 5196436, 10392872, 20785744]

約数ペア:

[(1, 20785744), (2, 10392872), (4, 5196436), (7, 2969392), (8, 2598218), (14, 1484696), (16, 1299109), (23, 903728), (28, 742348), (46, 451864), (56, 371174), (92, 225932), (112, 185587), (161, 129104), (184, 112966), (322, 64552), (368, 56483), (644, 32276), (1288, 16138), (2576, 8069)]