20587870

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 38071296

約数和(自身を除く): 17483426

約数列:

[1, 2, 5, 10, 71, 107, 142, 214, 271, 355, 535, 542, 710, 1070, 1355, 2710, 7597, 15194, 19241, 28997, 37985, 38482, 57994, 75970, 96205, 144985, 192410, 289970, 2058787, 4117574, 10293935, 20587870]

約数ペア:

[(1, 20587870), (2, 10293935), (5, 4117574), (10, 2058787), (71, 289970), (107, 192410), (142, 144985), (214, 96205), (271, 75970), (355, 57994), (535, 38482), (542, 37985), (710, 28997), (1070, 19241), (1355, 15194), (2710, 7597)]