20482655720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4531561}}^1$

素因数の和:4531685

約数の個数: 32

約数和(自身を含む): 46493826120

約数和(自身を除く): 26011170400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 4531561, 9063122, 18126244, 22657805, 36252488, 45315610, 90631220, 181262440, 512066393, 1024132786, 2048265572, 2560331965, 4096531144, 5120663930, 10241327860, 20482655720]

約数ペア:

[(1, 20482655720), (2, 10241327860), (4, 5120663930), (5, 4096531144), (8, 2560331965), (10, 2048265572), (20, 1024132786), (40, 512066393), (113, 181262440), (226, 90631220), (452, 45315610), (565, 36252488), (904, 22657805), (1130, 18126244), (2260, 9063122), (4520, 4531561)]