20372755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 27808704

約数和(自身を除く): 7435949

約数列:

[1, 5, 13, 37, 43, 65, 185, 197, 215, 481, 559, 985, 1591, 2405, 2561, 2795, 7289, 7955, 8471, 12805, 20683, 36445, 42355, 94757, 103415, 110123, 313427, 473785, 550615, 1567135, 4074551, 20372755]

約数ペア:

[(1, 20372755), (5, 4074551), (13, 1567135), (37, 550615), (43, 473785), (65, 313427), (185, 110123), (197, 103415), (215, 94757), (481, 42355), (559, 36445), (985, 20683), (1591, 12805), (2405, 8471), (2561, 7955), (2795, 7289)]