165318040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{133321}}^1$

素因数の和:133363

約数の個数: 32

約数和(自身を含む): 383967360

約数和(自身を除く): 218649320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 133321, 266642, 533284, 666605, 1066568, 1333210, 2666420, 4132951, 5332840, 8265902, 16531804, 20664755, 33063608, 41329510, 82659020, 165318040]

約数ペア:

[(1, 165318040), (2, 82659020), (4, 41329510), (5, 33063608), (8, 20664755), (10, 16531804), (20, 8265902), (31, 5332840), (40, 4132951), (62, 2666420), (124, 1333210), (155, 1066568), (248, 666605), (310, 533284), (620, 266642), (1240, 133321)]