20672128

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{5569}}^1$

素因数の和:5612

約数の個数: 32

約数和(自身を含む): 42610500

約数和(自身を除く): 21938372

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 464, 928, 1856, 3712, 5569, 11138, 22276, 44552, 89104, 161501, 178208, 323002, 356416, 646004, 712832, 1292008, 2584016, 5168032, 10336064, 20672128]

約数ペア:

[(1, 20672128), (2, 10336064), (4, 5168032), (8, 2584016), (16, 1292008), (29, 712832), (32, 646004), (58, 356416), (64, 323002), (116, 178208), (128, 161501), (232, 89104), (464, 44552), (928, 22276), (1856, 11138), (3712, 5569)]