388809320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{262709}}^1$

素因数の和:262757

約数の個数: 32

約数和(自身を含む): 898468200

約数和(自身を除く): 509658880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 262709, 525418, 1050836, 1313545, 2101672, 2627090, 5254180, 9720233, 10508360, 19440466, 38880932, 48601165, 77761864, 97202330, 194404660, 388809320]

約数ペア:

[(1, 388809320), (2, 194404660), (4, 97202330), (5, 77761864), (8, 48601165), (10, 38880932), (20, 19440466), (37, 10508360), (40, 9720233), (74, 5254180), (148, 2627090), (185, 2101672), (296, 1313545), (370, 1050836), (740, 525418), (1480, 262709)]