20289320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13709}}^1$

素因数の和:13757

約数の個数: 32

約数和(自身を含む): 46888200

約数和(自身を除く): 26598880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13709, 27418, 54836, 68545, 109672, 137090, 274180, 507233, 548360, 1014466, 2028932, 2536165, 4057864, 5072330, 10144660, 20289320]

約数ペア:

[(1, 20289320), (2, 10144660), (4, 5072330), (5, 4057864), (8, 2536165), (10, 2028932), (20, 1014466), (37, 548360), (40, 507233), (74, 274180), (148, 137090), (185, 109672), (296, 68545), (370, 54836), (740, 27418), (1480, 13709)]