256789320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2139911}}^1$

素因数の和:2139925

約数の個数: 32

約数和(自身を含む): 770368320

約数和(自身を除く): 513579000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2139911, 4279822, 6419733, 8559644, 10699555, 12839466, 17119288, 21399110, 25678932, 32098665, 42798220, 51357864, 64197330, 85596440, 128394660, 256789320]

約数ペア:

[(1, 256789320), (2, 128394660), (3, 85596440), (4, 64197330), (5, 51357864), (6, 42798220), (8, 32098665), (10, 25678932), (12, 21399110), (15, 17119288), (20, 12839466), (24, 10699555), (30, 8559644), (40, 6419733), (60, 4279822), (120, 2139911)]