20640752

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5099}}^1$

素因数の和:5141

約数の個数: 40

約数和(自身を含む): 45532800

約数和(自身を除く): 24892048

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 5099, 10198, 20396, 40792, 56089, 81584, 112178, 117277, 224356, 234554, 448712, 469108, 897424, 938216, 1290047, 1876432, 2580094, 5160188, 10320376, 20640752]

約数ペア:

[(1, 20640752), (2, 10320376), (4, 5160188), (8, 2580094), (11, 1876432), (16, 1290047), (22, 938216), (23, 897424), (44, 469108), (46, 448712), (88, 234554), (92, 224356), (176, 117277), (184, 112178), (253, 81584), (368, 56089), (506, 40792), (1012, 20396), (2024, 10198), (4048, 5099)]