198729488

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{288851}}^1$

素因数の和:288902

約数の個数: 20

約数和(自身を含む): 393994128

約数和(自身を除く): 195264640

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 288851, 577702, 1155404, 2310808, 4621616, 12420593, 24841186, 49682372, 99364744, 198729488]

約数ペア:

[(1, 198729488), (2, 99364744), (4, 49682372), (8, 24841186), (16, 12420593), (43, 4621616), (86, 2310808), (172, 1155404), (344, 577702), (688, 288851)]