398045455

素因数分解:

$5^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1\times {\mathrm{1009}}^1$

素因数の和:1578

約数の個数: 16

約数和(自身を含む): 481551840

約数和(自身を除く): 83506385

約数列:

[1, 5, 257, 307, 1009, 1285, 1535, 5045, 78899, 259313, 309763, 394495, 1296565, 1548815, 79609091, 398045455]

約数ペア:

[(1, 398045455), (5, 79609091), (257, 1548815), (307, 1296565), (1009, 394495), (1285, 309763), (1535, 259313), (5045, 78899)]