204095380

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{77899}}^1$

素因数の和:78039

約数の個数: 24

約数和(自身を含む): 431877600

約数和(自身を除く): 227782220

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 77899, 155798, 311596, 389495, 778990, 1557980, 10204769, 20409538, 40819076, 51023845, 102047690, 204095380]

約数ペア:

[(1, 204095380), (2, 102047690), (4, 51023845), (5, 40819076), (10, 20409538), (20, 10204769), (131, 1557980), (262, 778990), (524, 389495), (655, 311596), (1310, 155798), (2620, 77899)]