28920495

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{487}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 48066048

約数和(自身を除く): 19145553

約数列:

[1, 3, 5, 15, 37, 107, 111, 185, 321, 487, 535, 555, 1461, 1605, 2435, 3959, 7305, 11877, 18019, 19795, 52109, 54057, 59385, 90095, 156327, 260545, 270285, 781635, 1928033, 5784099, 9640165, 28920495]

約数ペア:

[(1, 28920495), (3, 9640165), (5, 5784099), (15, 1928033), (37, 781635), (107, 270285), (111, 260545), (185, 156327), (321, 90095), (487, 59385), (535, 54057), (555, 52109), (1461, 19795), (1605, 18019), (2435, 11877), (3959, 7305)]