201988420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1\times {\mathrm{283}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 430553088

約数和(自身を除く): 228564668

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 281, 283, 508, 562, 566, 635, 1124, 1132, 1270, 1405, 1415, 2540, 2810, 2830, 5620, 5660, 35687, 35941, 71374, 71882, 79523, 142748, 143764, 159046, 178435, 179705, 318092, 356870, 359410, 397615, 713740, 718820, 795230, 1590460, 10099421, 20198842, 40397684, 50497105, 100994210, 201988420]

約数ペア:

[(1, 201988420), (2, 100994210), (4, 50497105), (5, 40397684), (10, 20198842), (20, 10099421), (127, 1590460), (254, 795230), (281, 718820), (283, 713740), (508, 397615), (562, 359410), (566, 356870), (635, 318092), (1124, 179705), (1132, 178435), (1270, 159046), (1405, 143764), (1415, 142748), (2540, 79523), (2810, 71882), (2830, 71374), (5620, 35941), (5660, 35687)]