258215410

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1\times {\mathrm{449}}^1$

素因数の和:1026

約数の個数: 32

約数和(自身を含む): 470448000

約数和(自身を除く): 212232590

約数列:

[1, 2, 5, 10, 131, 262, 439, 449, 655, 878, 898, 1310, 2195, 2245, 4390, 4490, 57509, 58819, 115018, 117638, 197111, 287545, 294095, 394222, 575090, 588190, 985555, 1971110, 25821541, 51643082, 129107705, 258215410]

約数ペア:

[(1, 258215410), (2, 129107705), (5, 51643082), (10, 25821541), (131, 1971110), (262, 985555), (439, 588190), (449, 575090), (655, 394222), (878, 294095), (898, 287545), (1310, 197111), (2195, 117638), (2245, 115018), (4390, 58819), (4490, 57509)]