19827560

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13397}}^1$

素因数の和:13445

約数の個数: 32

約数和(自身を含む): 45821160

約数和(自身を除く): 25993600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13397, 26794, 53588, 66985, 107176, 133970, 267940, 495689, 535880, 991378, 1982756, 2478445, 3965512, 4956890, 9913780, 19827560]

約数ペア:

[(1, 19827560), (2, 9913780), (4, 4956890), (5, 3965512), (8, 2478445), (10, 1982756), (20, 991378), (37, 535880), (40, 495689), (74, 267940), (148, 133970), (185, 107176), (296, 66985), (370, 53588), (740, 26794), (1480, 13397)]