261845280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181837}}^1$

素因数の和:181858

約数の個数: 72

約数和(自身を含む): 893551932

約数和(自身を除く): 631706652

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 181837, 363674, 545511, 727348, 909185, 1091022, 1454696, 1636533, 1818370, 2182044, 2727555, 2909392, 3273066, 3636740, 4364088, 5455110, 5818784, 6546132, 7273480, 8182665, 8728176, 10910220, 13092264, 14546960, 16365330, 17456352, 21820440, 26184528, 29093920, 32730660, 43640880, 52369056, 65461320, 87281760, 130922640, 261845280]

約数ペア:

[(1, 261845280), (2, 130922640), (3, 87281760), (4, 65461320), (5, 52369056), (6, 43640880), (8, 32730660), (9, 29093920), (10, 26184528), (12, 21820440), (15, 17456352), (16, 16365330), (18, 14546960), (20, 13092264), (24, 10910220), (30, 8728176), (32, 8182665), (36, 7273480), (40, 6546132), (45, 5818784), (48, 5455110), (60, 4364088), (72, 3636740), (80, 3273066), (90, 2909392), (96, 2727555), (120, 2182044), (144, 1818370), (160, 1636533), (180, 1454696), (240, 1091022), (288, 909185), (360, 727348), (480, 545511), (720, 363674), (1440, 181837)]