201830780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{919}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 432768000

約数和(自身を除く): 230937220

約数列:

[1, 2, 4, 5, 10, 20, 79, 139, 158, 278, 316, 395, 556, 695, 790, 919, 1390, 1580, 1838, 2780, 3676, 4595, 9190, 10981, 18380, 21962, 43924, 54905, 72601, 109810, 127741, 145202, 219620, 255482, 290404, 363005, 510964, 638705, 726010, 1277410, 1452020, 2554820, 10091539, 20183078, 40366156, 50457695, 100915390, 201830780]

約数ペア:

[(1, 201830780), (2, 100915390), (4, 50457695), (5, 40366156), (10, 20183078), (20, 10091539), (79, 2554820), (139, 1452020), (158, 1277410), (278, 726010), (316, 638705), (395, 510964), (556, 363005), (695, 290404), (790, 255482), (919, 219620), (1390, 145202), (1580, 127741), (1838, 109810), (2780, 72601), (3676, 54905), (4595, 43924), (9190, 21962), (10981, 18380)]