2019490820

素因数分解:

$2^2\times 5^1\times {\mathrm{5051}}^1\times {\mathrm{19991}}^1$

素因数の和:25051

約数の個数: 24

約数和(自身を含む): 4241982528

約数和(自身を除く): 2222491708

約数列:

[1, 2, 4, 5, 10, 20, 5051, 10102, 19991, 20204, 25255, 39982, 50510, 79964, 99955, 101020, 199910, 399820, 100974541, 201949082, 403898164, 504872705, 1009745410, 2019490820]

約数ペア:

[(1, 2019490820), (2, 1009745410), (4, 504872705), (5, 403898164), (10, 201949082), (20, 100974541), (5051, 399820), (10102, 199910), (19991, 101020), (20204, 99955), (25255, 79964), (39982, 50510)]