20750140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 25375940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 79, 92, 115, 158, 230, 316, 395, 460, 571, 790, 1142, 1580, 1817, 2284, 2855, 3634, 5710, 7268, 9085, 11420, 13133, 18170, 26266, 36340, 45109, 52532, 65665, 90218, 131330, 180436, 225545, 262660, 451090, 902180, 1037507, 2075014, 4150028, 5187535, 10375070, 20750140]

約数ペア:

[(1, 20750140), (2, 10375070), (4, 5187535), (5, 4150028), (10, 2075014), (20, 1037507), (23, 902180), (46, 451090), (79, 262660), (92, 225545), (115, 180436), (158, 131330), (230, 90218), (316, 65665), (395, 52532), (460, 45109), (571, 36340), (790, 26266), (1142, 18170), (1580, 13133), (1817, 11420), (2284, 9085), (2855, 7268), (3634, 5710)]