20411755

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 30489984

約数和(自身を除く): 10078229

約数列:

[1, 5, 7, 13, 35, 65, 91, 113, 397, 455, 565, 791, 1469, 1985, 2779, 3955, 5161, 7345, 10283, 13895, 25805, 36127, 44861, 51415, 180635, 224305, 314027, 583193, 1570135, 2915965, 4082351, 20411755]

約数ペア:

[(1, 20411755), (5, 4082351), (7, 2915965), (13, 1570135), (35, 583193), (65, 314027), (91, 224305), (113, 180635), (397, 51415), (455, 44861), (565, 36127), (791, 25805), (1469, 13895), (1985, 10283), (2779, 7345), (3955, 5161)]